River rafting is popular with cruisers, while skilled divers might head for Arnarnesstrytur where hydrothermal chimneys deliver 79 - degree warm water streaming from a cone. (travelagentcentral.com)
By advancing through the PADI dive courses, not only will you become a more skilled diver, but you will also open the doors for many more diving opportunities in more challenging and exciting environments. (seaventuresdive.com)
Thankfully, they are skilled divers with many adaptations to keep them from breaking bones and otherwise injuring themselves... all the better for their unique brand of surprise attack. (treehugger.com)