The best dive destinations with no scuba tank required. Swim with whales in Norway, Tonga and Sri Lanka or grab your freediving gear and head to Australia to dive with fur seals.

Conservation work around the world has helped the endangered humpback whale's global population recover to about 80,000.

Forget SeaWorld, scuba diving with Killer whales — aka orca whales — is the best encounter you can have. Find out where to dive with these massive toothed predators.

Whale research is nothing to sneeze at, but this aerial drone will be used to track whales around the world using their blow-hole emissions.

Looking for the world's best diving? From sharks to humpback whales and beautiful wrecks, French Polynesia is perfect for divers!

This incredible image is one in a million! Check out these beautiful humpback whales underwater in Tonga.

Residents of the Faroe Islands have slaughtered about 250 pilot whales in the last 24 hours, according to reports from Sea Shepherd and global media.

Check out this amazing video: A sperm whale sees a free diver spinning underwater and decides to join him!

The Hercules ROV (Remote Operated Vehicle) was exploring the coast of Louisiana when it came across a curious sperm whale nearly 600 meters beneath the surface. Occurrences like this are rare at this depth, especially with underwater robots. The researchers were surprised to see the whale stick around and circle the ROV a few times, giving us a unique look at this magnificent creature. Check out this amazing footage caught on film by the crew of the E/V _Nautilus_ and learn more about this historic expedition.