A dive off Thailand’s Similan Islands offers up a string of underwater sightings, from a swooping manta ray and a pufferfish closeup to some hungry triggerfish at mealtime.<br /><br /><p>Dive trips kindly sponsored by <a href="http://www.rayadivers.com/">Raya Divers</a>, Thailand</p>

Snake eel and deadly stonefish

Oceans cover 71 percent of the Earth's surface - that's a lot of space to explore! From estuaries to coral reefs and kelp forests, Earth Touch's underwater crew is telling the stories of the deep blue - one extraordinary dive at a time