Do I need Advanced Open Water?

Most liveaboards require it or a minimum of 50 logged dives. Current-heavy routes like Komodo, Galapagos, and the southern Red Sea want more. The requirement is there because you will be diving open blue water with current, often from a tender.

What if I get seasick?

Bigger boats are steadier, and routes with overnight crossings are worse. Take medication the night before departure, not once you feel it. Most people adjust within a day.

Sometimes. It is often a flat fee for the week, and on four-dive days it meaningfully extends your bottom time and reduces fatigue. Get certified before you go if you are not already.

Liveaboard Dive Trips: Live on the Water, Dive All Day

Eat, sleep, dive, repeat. A liveaboard takes you to sites day boats cannot reach, puts four dives a day on the schedule, and gives you a week where the only decision is which dive to skip.