How the Cruise Director marine life advice is built

17 July 2026 · Reviewed by a PADI IDC Staff Instructor

Every diver has asked the same question before booking a trip. Will I actually see the whale sharks, the hammerheads, the mantas, or am I turning up in the wrong week? The Cruise Director on DiveScanner answers that question. For the destination and month you pick, it shows a realistic chance of seeing each species, ranked best place first. This page explains where that advice comes from.

Built from experience, not theory

Most season charts you find online are copied from other websites, and the mistakes get copied with them. We built the Cruise Director the other way round. It starts from the people who are in the water for a whole season, every season, and who watch the same sites change month by month. Their experience is the foundation. Books and charts are only used to confirm what the experience already shows.

Whose experience it draws on

The advice is shaped by two groups who see the reality of a destination up close.

PADI Staff Instructors bring years of teaching and diving across different regions and conditions. They know how a site behaves at different times of year, what a certification level really means on a given route, and how season, current and water temperature change what you see.

Liveaboard crew, including dive guides and cruise directors, run the same itineraries again and again. They see which weeks the mantas arrive, when the sharks show up, and how a normal season differs from a quiet one. That repeated, first hand observation is something no chart can give you.

How it is checked

Experience on its own can be local or lucky, so every piece of advice is checked before it goes in. Seasonal patterns are compared against trusted sources, and then confirmed by dive centre owners who run operations at the destination and depend on getting it right for their own guests. When the experience, the sources and the operators on the ground all agree, the advice is trusted. Where they do not agree, the advice stays cautious.

Why this matters when you book

Booking a liveaboard is a big trip, and timing is often the difference between the trip of a lifetime and a near miss. Realistic season advice helps you pick the right week for the animals you care about, avoid paying for a season when a species is unlikely, and set fair expectations before you go. It also supports better diving. When you plan around the real season, you are less likely to chase or crowd wildlife in the hope of a sighting that was never likely, which is better for the animals and for everyone on the boat.

What the advice does and does not promise

The Cruise Director gives a realistic probability, not a guarantee. The ocean is wild and no one can promise an animal on a given day. What we can do is tell you truthfully where and when your chances are strongest, and where they are slim, so you decide with clear information. If a sighting is unlikely for your dates, the advice will say so rather than sell you a hope.

Kept current by the people who dive it

Seasons shift and patterns change, so the advice is reviewed as new experience comes in from the instructors, crew and dive centres behind it. The aim is simple. The advice you read should match what an experienced guide would tell you on the boat.

Try the Cruise Director

Pick your destination and month, and let the Cruise Director show you the best chances for the marine life you care about, then compare liveaboards cheapest first.

FAQ

Where does the Cruise Director advice come from?

It is built from the experience of PADI Staff Instructors and liveaboard crew who dive the destinations across full seasons, then checked against trusted sources and confirmed by dive centre owners.

Is the marine life advice a guarantee?

No. It is a realistic probability by destination and month. The ocean is wild, so no sighting can be promised, but the advice tells you truthfully when your chances are strong or slim.

Why trust this over a season chart?

Many charts are copied from site to site along with their errors. The Cruise Director starts from people who are in the water every season and uses sources only to confirm what that experience shows.

How often is the advice updated?

It is reviewed as new experience comes in from the instructors, crew and dive centres behind it, so it keeps matching real conditions.