• Tagged adventure, cave diving, cavers, caves, caving, ice caves, nature, sea caves

Amazing caves are located all over the globe, different types in a wide variety of sizes are waiting to be explored. Some folks call it caving, spelunking, or even potholing, but it’s all an adventure…at least until something goes wrong and then cavers are called in to rescue spelunkers. It’s been said that “the cave you fear to enter holds the treasure you seek.” While in the mood to go caving, we cruised 500px for creative captures of caves with creative common licenses. Here are the cave photo treasures we found. [35 Photos]

• Tagged adventure, backpack camping, camping, nature, night photography, positive quotes, stargazing, stars

With the arrival of summer, the great outdoors is calling, “Come play in me.” Millions of people enjoy hiking, backpacking, trekking and then camping under the stars. Here are some positive quotes and tremendous night sky views to inspire you to get out there; have an adventure, and go camping! [42 Photos]

• Tagged Abismo Anhumas, adventure, Blue Lake Cave, Blue Lake Grotto, Brazil, caving, environment, Gruta do Lago Azul, nature

Bonito is the heart of eco-tourism in Brazil because it is famous for its natural beauty, prehistoric caves, waterfalls, and clear blue waters. One of the most beautiful is Blue Lake Cave (Gruta do Lago Azul). Amazingly, it is believed that no human set foot inside the cavern with the cobalt blue waters until 1924 when an Indian from the Terena tribe discovered it. That’s not to say nothing ventured down into the 328 feet (100 meters) deep cave, since massive mammals fossils from about 10,000 years ago were discovered by cave divers, bones such as those belonging to the Saber-tooth tiger and giant ground sloth. Because the water is so clear, it is hard to fathom that Blue Lake Cave is about 295 feet (90 meters) deep. Adventurers start with a hike through the forest, then go caving through a wide entrance that allows sunlight to illuminate the gorgeous blue waters as well as stalactites and stalagmites of all different sizes. Here’s a look at Bonito, Mato Grosso do Sul, Brazil and some of the extraordinary and unusual ecotourism adventures and true natural treasures including beautiful Blue Lake Cave. [25 Photos]

• Tagged adventure, Alaska, Alaskan coves, animals, environment, Glacier Bay, Glacier Bay National Park & Preserve, glaciers, glaciers calving, iceberg, nature, UNESCO World Heritage Site, wilderness, wildlife

Many of these photos were taken during a cruise to Glacier Bay, others from the air, but Glacier Bay National Park and Preserve offers all kinds of adventures. What starts as a loud crack like a rifle shot is also a sign of icebergs being born at Glacier Bay as glaciers break off or calve. The National Park Service asks, what do you want to do and how much time do you have to do it in? “Covering 3.3 million acres of rugged mountains, dynamic glaciers, temperate rainforest, wild coastlines, and deep sheltered fjords, Glacier Bay National Park is a highlight of Alaska’s Inside Passage and part of a 25-million acre World Heritage Site—one of the world’s largest international protected areas. From summit to sea, Glacier Bay offers limitless opportunities for adventure and inspiration.” Glacier Bay National Park and Preserve also has the 3rd highest elevation of all U.S. National Parks. Here are some of the gorgeous ancient glaciers, photos capturing the glaciers calving and the birth of icebergs, wonderful wildlife, and spectacular scenery of Glacier Bay National Park and Preserve, Alaska. [44 Photos, 5 Videos]

• Tagged adventure, arched bridge, Ash Cave, bridge, bridges, Broken Rock Falls, cave, caves, Cedar Falls, Conkle's Hollow, Devil's Bathtub, forest, gorge, hiking, Hocking Hills, Hocking Hills State Park, nature, Ohio, Old Man's Cave, rock climbing, rocking climbing, rocks, State Park, trails, waterfalls, woods

In Ohio, there is a gorgeous State Park that has undisturbed forests, cascading waterfalls, rugged cliffs, deep recess caves and mysterious gorges. The 2,356-acre Hocking Hills State Park is a place of adventure for nature lovers. It is embedded in Hocking State Forest and its three nature preserves includes Conkle’s Hollow. The park is divided into these five separate sections: Old Man’s Cave, Cedar Falls, Ash Cave, Cantwell Cliffs and Rock House. Hocking Hills State Park is about 3 hours away from Cuyahoga Valley National Park, the 10th most visited U.S. National Park in 2011. Both must be gorgeous in the fall season with the changing colors of autumn foliage, but we were struck by the beauty of the “greeness” at Hocking Hills. [47 Photos]

• Tagged adventure, cave, cavers, caving, exploration, extreme sports, Hang Son Doong, karst, Phong Nha Cave, Phong Nha-Kẻ Bảng, Phong Nha-Ke Bang National Park, Phong Nha–Kẻ Bàng karst, Son Doong Cave, stalactites, stalagmites, Thien Duong Cave, Tien Son Cave, Vietnam

Hidden in the thick tropical forest of Vietnam is a land of phenomenal caves. Phong Nha-Ke Bang National Park contains the oldest major karst area in Asia; the karst is believed to have formed 400 million years ago, during the Palaeozoic era, With every cave discovery, that cave is considered the largest and longest in Phong Nha-Ke Bang, only to learn later that yet another even more massive cave has been found. This national park is home to the largest cave in the world and is said to be the home of the many of the world’s most beautiful caves. It’s famous for its cave and grotto systems, about 300 caves and grottos, of which only 20 have been surveyed by Vietnamese and British scientists. UNESCO named it a World Heritage Site for its geological values. Spectacular stalactites and stalagmites create an underground fairy-tale-like world where formations look like the caves possess jagged teeth or home to strangely alien trees. Visitors to Phong Nha-Ke Bang National Park most often visit the massive Paradise Cave and huge Phong Nha Cave as seen below. If you don’t expect to ever travel to Vietnam, then here is a virtual trip to see the mysterious and massive world hidden beneath Phong Nha-Ke Bang National Park . [39 Photos, 2 Videos]

• Tagged adrenaline rush, adventure, cave divers, cave diving, caverneers, dive, divers, diving, eels, extreme sport, fish, Florida, freshwater diving, nature, people, travel, Vortex Springs

Vortex Spring produces 28 million gallons of crystal clear freshwater, not saltwater, and holds at a steady year-round temperature of 68 degrees. It’s located right outside Ponce de Leon, Florida. Yet instead of the famed Fountain of Youth, the commercial dive location is famous for teaching people how to cave dive . . . and a bit infamous for all the cave divers who have died there. We had not heard of this unusual yet beautiful piece of paradise, but we hope you find it as fascinating and mysterious as we do. From professional cave divers to curious adrenaline junkies, adventurers travel far and wide to dive the Vortex. There are more than 1,600 feet of underwater passageways. At 310 feet down, there is a locked steel gate that bars the way into the cave so the inexperienced and uncertified will not risk the underwater grim reaper. Sometimes even qualified divers get lost; sometimes they dive into the Vortex but they don’t come out. [32 Photos, 5 Videos]

• Tagged adventure, Beaver Marsh, biking, Blue Hen Falls, Brandywine Falls, cave, Cuyahoga Valley, Cuyahoga Valley National Park, hiking, ledges, National Park, nature, Ohio, places, Ritchie Ledges, rock formations, train, travel, waterfall, waterfalls, wildlife

Coming in as the 10th most visited national park in 2011 is Cuyahoga Valley National Park in northern Ohio. It offers adventurers a little bit of everything in the 20,339 acres of woods, water, wildlife and even caves. There are nearly 200 miles of trails within the park for visitors to hike, bike or for horseback riding. The Cuyahoga River, meaning ‘crooked river’ in Mohawk, is fed by more than 190 miles of other waterways to tempt fishermen of all ages. Millions of years ago, water etched out the 105-foot high sandstone Ritchie Ledges and Ice Box Cave, also carving other wonderful rock formations. More than 2 million visitors came to Cuyahoga Valley National Park last year to enjoy the wooded ravines, gentle rolling hills, 170 waterfalls, historic railway, buildings and paths. Welcome to Ohio’s only national park, welcome to Cuyahoga Valley National Park! [40 Photos]

• Tagged adventure, aerial, cliffs, environment, Haena Point, Hawaii, HonopÅ« Valley, island, Na Pali, Napoli, nature, Nā Pali Coast State Park, places, travel

Anyone else thinking, come on Spring, I wanna go out and play in nature? The tropical beauty of Na Pali along the shore of Kauai, Hawaii, and the rugged coastline could give adventure seekers a case of spring fever all year round. Na Pali means “the Cliffs” and those characteristic sheer cliffs which drop 4,000 feet (1200 m) straight down into the ocean make much of Na Pali Coast inaccessible by car. Nā Pali Coast State Park has 6,175 acres and stretches for 16 rugged miles along the northwest side of Kauaʻi paradise. Honopū Valley has been made iconic from movies filmed on Na Pali. Are you tired of winter too? We love these gorgeous pictures which gave us a serious case of Spring Fever. Enjoy! [43 Photos]

• Tagged adventure, arches, Arches National Park, climbing, desert, environment, Moab, National Park, nature, rock formations, rocks, Utah

Arches National Park is a gorgeous 76,679 acre landscape which preserves over 2,000 natural sandstone arches. The park is located in eastern Utah, right outside Moab which is an outdoor adventure lovers’ paradise. The park is in the high desert where the forces of nature like erosion have exposed millions of years of geologic history, diverse colors and textures of arches and very unusual rock formations. 43 arches have collapsed since 1970, yet still the beauty of nature here will leave you in awe. Arches National Park is an outdoor adventure lovers’ paradise with many activities such as backpacking, biking, camping, canyoneering, commercial tours, hiking, rock climbing and plenty to keep a photographer busy. According to the National Park Service, “To many, the most outstanding natural features of Arches are the park’s geologic formations. Over 2,000 catalogued arches range in size from a three-foot opening (the minimum considered to be an arch), to Landscape Arch which measures 306 feet from base to base. Towering spires, fins and balanced rocks complement the arches, creating a remarkable assortment of landforms in a relatively small area.” [47 Photos]

• Tagged adventure, animals, Arctic, Arctic Circle, Aurora Borealis, Christmas, environment, explorers, holiday, nature, North Pole, Northern lights, reindeer, winter

When most folks hear ‘North Pole,’ they tend to think of Santa Claus and his home. But it would be difficult to build a residence or workshop at the North Pole since it is located in the middle of the Arctic Ocean. You could, however, walk on water at the North Pole since it is surrounded by waters that are almost permanently covered with constantly shifting sea ice about 2 to 3 m (6 ft 7 in to 9 ft 10 in) thick. The Arctic consists of the Arctic Ocean along with portions of Canada, Russia, Greenland, the United States, Norway, Sweden, Finland, and Iceland. NOAA describes the Arctic as “a vast, ice-covered ocean, surrounded by tree-less, frozen ground, that teems with life, including organisms living in the ice, fish and marine mammals, birds, land animals and human societies. Persistent warming and record-setting changes are occurring throughout the Arctic environment with resultant impacts on Arctic ecosystems.” Here’s a look beyond Polar Express or St. Nick at the real North Pole, the Arctic Circle, the Arctic and its brave explorers who dared to adventure in a land beyond brrrr! We hope you have a very happy holiday season! [45 Photos]

• Tagged adventure, Alpine Lakes Wilderness, Cascade Range, environment, forest, hikers, lakes, Mount Stuart, mountaineering, mountains, National Forest, nature, The Enchantments, travel, Washington, woods

Alpine Lakes Wilderness consists of 390,000 acres of rugged wilderness spanning the Cascade Range of Washington state and parts of Wenatchee National Forest and Snoqualmie National Forest. There are over 700 mountain lakes and over 300 miles (480 km) of Forest Service class one and two streams. The terrain includes craggy peaks and ridges, deep glacial valleys, granite walls and forests that are picture perfect and ready to enchant visitors &#8212 especially in autumn. It is an adventurers’ delight: nature lovers, backpackers, mountaineers, hikers, photographers. We love these pics, but they are but a tiny slice of this Alpine Lakes Wilderness piece of heaven dropped down on earth for adventurers to enjoy. [38 Photos]