Eight large air conditioned cabins each with their own personal computer, audio visual entertainment system and en suite bathrooms with hot water. All rooms are lavished with luxury extras including hair dryers, in room safe, towels, controlled mood lighting and individual controls for your air conditioning unit. The cabins are all positioned off the same corridor leading from the saloon apart from the owners cabin.

This can be found at the rear of the boat, entered via a separate entrance and is slightly smaller than the other cabins but still has all the amenities and fittings of the other cabins. None of the cabins have bunk style beds but either two single or one queen size double bed. Two cabins have three single beds but only two are occupied on scheduled trips. The third bed is only offered for full charters allowing up to 18 guests on the boat.

The diving could not be simpler. At the front of the boat is the large dive deck. Guests are assigned their spot and having put together their scuba equipment once on arrival, they never have to take it apart again until the end of the trip. The dive staff not only fill your cylinder with your choice of compressed air or enriched air nitrox (32) free to you if qualified, but also rinse and will carry your equipment to one of the two dive tenders should you not wish to wear it down to the dive platform where you simply step into the waiting tender. Guests are whisked off to the dive sites by the dive tender and the majority of the diving is drift diving. At the end of the dive launch your delayed surface marker buoy or allow your guide to do so. On surfacing the tender will be there waiting for you and the boat boy will assist you in getting back in.

Guests can either keep their equipment on and climb the tender ladder or remove the equipment in the water and enter the tender after the boat boy has lifted your equipment into the boat. On returning to the S/Y Siren guests are greeted by staff handing out big thick towels specifically for the dive deck and do not be surprised to also be handed a cold glass of water or a hot chocolate following night dives. Most days allow for four dives, one after a light breakfast, then another after a full breakfast. The third after lunch and the fourth either after the afternoon cake but before dinner. However if guests prefer to dive after dinner they are free to do so.

The S/Y Siren is an Aqua Lung Partner Centre and the majority of equipment is free for guests to use. They only charge for daily rental of a dive computer and torch. Dive groups are kept to small numbers and guests have an option to be led by a dive guide or dive by themselves with a buddy if suitable experienced and qualified. Most dives are limited to 1 hour in duration although exceptions are made for photographers / videographers. The S/Y Siren is rebreather friendly but guests should notify us as early as possible if they intend to bring their rebreathers. The S/Y Siren uses 12ltr aluminium cylinders and has some 15ltr cylinders for those who wish to use them. Dedicated rinse tanks are provided for those with camera and video housings and there are also plenty of charge points in the saloon and in guest’s cabins. Prep and storage areas are also plentiful. When not in marine parks it is possible to fish, waterski or wakeboard and tuition is available.

Kayaks are also on board for those who wish to explore.

Between June and October the S/Y Siren makes the long journey to Komodo. Located 200 nautical miles east of Bali, the Komodo National Park is nestled between the large island of Sumbawa and Flores in Indonesia, all of which are part of the Lesser Sunda Islands. Officially declared a World Heritage Site in 1991, the Komodo National Park encompasses 132,000 hectares of marine waters making it one of the largest protected zones in the world. The Komodo National Park and surrounding areas boast a unique biosphere born in the ancient volcanic eruptions that formed Sumatra, Java, Bali and the islands lying eastward to Papua New Guinea. As a consequence, the topography of the islands are striking and unique. Komodo Island is 35km in length and 15km wide. It is mountainous with an average altitude of 500-600m, the highest peak being Satalibo (735m) in the north.

The majority of the island is covered in lontar palm savannah with remnants of rainforest and bamboo forests. The irregular coastline is marked by rocky headlands and sandy bays against a backdrop of soaring volcanic cliffs. The Komodo National Park and surrounding area boasts one of the world's richest marine environments. With over 260 species of reef building coral, 70 species of sponge, marine worms, mollusks, echinoderms, crustaceans, over 1000 species of cartilaginous and bony fish, marine reptiles, and marine mammals. Some notable marine species include pygmy seahorses, anglerfish, nudibranchs, manta rays, dolphins, whales, dugongs, napolean wrasse and groupers.

The Komodo National Park hosts a rare diversity of animals, including a population of the world’s largest lizard, the famous Komodo Dragon. The Park is also home to Sunda deer, wild buffalo, wild boar, the macaque monkey and wild horse. For bird watchers, there have been over 150 bird species identified including the sulphur-crested cockatoos, imperial pigeons, white-breasted sea eagles and maleos. The S/Y Siren leaves and returns on 10 day trips from Bima on Sumbawa.