Important parts of SMY Ondina are identified.
Guest cabins are below deck. Each has portholes (you can see them from the steps forward). Ondina's cabins are fitted in exotic wood. They each have an ensuite bath, individually controlled air-conditioning, a large closet and storage underneath the bunk for bags.
SMY Ondina was designed specifically for diving. There are steps on both sides used to board the dive tenders. The crew carries the tanks (fully set up) and camera equipment onto the dive tenders. Guests need only bring themselves and mask/fins.
The large dive deck is fully enclosed. Dive gear and dive briefings are out of the weather, whether it be sun, wind or rain. Also inside are charging stations for batteries and dive equipment storage underneath each divers station.
Dive towels are dried and replaced by the crew in each divers station during the dive.
The crew have their own cabins.