If you yawn at the thought of diving yet another coral reef or spending your bottom time searching for little critters, if diving just can't get exciting enough for you, you might want to consider our choice of five of the most thrilling liveaboard experiences for your next trip
S/Y Fiji Siren | Fiji
Fish soup? Think shark soup. Encounters with 70 or more sharks at the same time might not be for everyone but if you're bursting with excitement from just thinking about it, book yourself a trip aboard the S/Y Fiji Siren. The luxury yacht takes up to 16 divers a time around Fiji's top dive sites, including the Nigali Passage. Fiji's reefs are particular healthy and reef shark populations are thriving as a result. Dozens and dozens of them patroll the narow underwater channel.
For more information visit http://sirenfleet.com/liveaboards/fiji.html
Galapagos Agressor | Galapagos Islands, Ecuador
If you want to tick some rare species off your to-see list, the Galapagos archipelago is your spot - 179 years after Charles Darwin's first visit, the Galapags Islands are still home to one of the most unique ecosystems on the planet. The large amount of endemic species make diving here particularly thrilling. Get up close with iguanas, turtles, whaleshark, schooling sharks and rays and the only penguin species that lives in the tropics.
For more information visit http://www.aggressor.com/galapagos.php
Ortelius | Antarctica
Diving aboard the Ortelius is not for the faint-hearted - or those who dread cold water. The vessel takes up to 100 people to Antarctica and gives divers an opportunity to encounter a predatorwe should all respect - the leopard seal.
For more information visit http://www.oceanwide-expeditions.com/our-fleet/ship/m-v-ortelius
UNDERSea Hunter | Cocos Island, COsta Rica
Schooling hammerheads, large amounts of fish, even orca whales, you won't leave Cocos Island disappointed. If you have US$1,8000 to spare you can dive down down to 305m in the DeepSee submarine, or to 90m for US$ 1,200 - that sure will get your heart rate up!
For more information visit http://www.underseahunter.com/
Tonga Nai'a | Tonga
The size of a humpback whale is impressive and getting into the water with the is an enthralling experience. The Tonga Nai'a allows divers to get up close with the gracious and friendly mammals.
For more information visit http://www.naia.com.fj/