They offer you PADI Courses and the instructors are very professional and helpful. Also they have a lot of experience under their belts. There are other facilities that offer a lot of options for non divers: a bar, a movie room, a great games room with features such as table tennis or pool, a karaoke lounge and a lot more, such as a playroom for children, various shops and so on. Also you have great wireless access, with a very high speed, all that for free, you will be staying in touch with the rest of the world.
Comfort on the sun deck is what you can do in the evening, that's how you are able to avoid mosquitoes easily. You can also watch the sunset, since you are one of the higher locations of Mabul. Also the food at Seaventure is well known all around the islands and is very delicious. There is western cuisine and Asian cuisine. They just offer you anything your heart desires!