A couple of hundred metres from the airport is a colourful house with a concrete dugong built into the ground. It belongs to Onesimus Laa, a dugong whisperer and environmentalist who organises trips to Sika Island to see the ikan duyung. Pop in at least one day before to book (150,000Rp per person, 1½ to 2 hour trips).
These dugong can grow up to 3m long and weigh 150kg. Onesimus has strict rules including small groups only, no diving, only snorkelling with his permission, keeping a distance when snorkelling and avoiding all physical contact with the beautiful sea creatures.