Ocean Sapphire is a deluxe standard liveaboard, offering scuba dive and surf trips in the Maldives according to the seasons, It can accommodate 22 guests.
Oceania is a deluxe standard dive liveaboard, it focus on providing scuba diving charters within the Bismarck Sea as well as some other areas within Papua New Guinea, it can accommodate up to 16 guests per trip.
Odyssey is a deluxe standard dive yacht runs by Seafari Fleet, offering scuba trips all around the Red Sea (Egypt & Sudan). It can accommodate 26 guests.
Okeanos Aggressor I is a deluxe standard professional dive yacht runs by Aggressor Fleet, offering scuba diving trips in Cocos Island (Costa Rica) year round, it can accommodate 22 guests.
Okeanos Aggressor II is a deluxe standard professional dive yacht runs by Aggressor Fleet, offering scuba diving trips in Cocos Island (Costa Rica) year round, it can accommodate 22 guests.
Oman Explorer is a deluxe standard dive liveaboard runs by Extra Divers Fleet. It mainly offers diving liveaboard trips in Hallaniyat Islands of Oman during Oct to mid May every year, it can accomodate 22 guests onboard.
Ombak Putih is a deluxe standard liveaboard, offering leisure cruise (no scuba diving) in Indonesia according to the seasons, it can accommodate 24 guests.
Ondina is a comfortable standard liveaboard, offering professional scuba diving trips in Indonesia according to the seasons, it can accommodate 16 guests.
Ortelius is a comfortable standard Polar vessel runs by Oceanwide Expeditions, it offering both scuba diving and Polar cruise explorations in the Antartica and Arctic, it can accommodate 108 guests.
Over Reef is a deluxe standard liveaboard, offering dive & leisure charter trips in the Maldives according to the seasons, It can accommodate 6 guests.
Pacific Master is a deluxe standard dive yacht runs by Master Fleet, offering scuba trips in Solomons Islands, Bikini Atoll, Truk Lagoon according to the seasons, it can accommodate 20 guests.
Palau Aggressor II is a deluxe standard professional dive yacht runs by Aggressor Fleet, offering scuba diving trips all around Palau, it can accommodate 18 guests.
Panunee is a deluxe standard liveaboard, offering professional scuba diving trips in Indonesia according to the seasons, it can accommodate up to 22 guests.
Pearl of Papuais a comfortable standard liveaboard, offering both diving and leisure trips in Indonesia according to the seasons, it can accommodate 14 guests.
Pelagian is a high-end standard professional liveaboard runs by Wakatobi Dive Resort, offering dive liveaboard trips in the Wakatobi area all year round, it only accommodate 10 guests.