The whole boat costs less per person once the cabins fill. For 3D2N it is IDR 62,000,000 (≈ USD 3,804) for 1 to 4 guests. It is IDR 65,000,000 (≈ USD 3,988) for 5 to 8, and IDR 69,000,000 (≈ USD 4,233) for 9 to 10. A 2D1N charter starts at IDR 54,000,000 (≈ USD 3,313), and 4D3N runs from IDR 76,000,000 (≈ USD 4,663) to IDR 85,000,000 (≈ USD 5,215).
Four guests pay IDR 15,500,000 (≈ USD 951) each. Eight pay IDR 8,120,000 (≈ USD 498) each, and ten pay IDR 6,900,000 (≈ USD 423). Derya stops at 10 guests, so a party of 11 or more books Semesta Voyages instead. No fare includes park tickets or ranger fees.
Should Derya miss a sailing for a breakdown or a port or park order, the date stays: you move to a phinisi of equal or higher standard at no extra cost. A full refund within 14 days is the other choice.