If you’ve never spent much time on a boat, you may be unsure about what to do on your first boat dive. No worries — we’ve got tips!

1. Ask the boat captain for permission to board.

This is a common maritime etiquette “rule.” The captain and crew will appreciate the courtesy, especially if they’re still making last-minute preparations, like loading tanks.

2. Listen to the boat briefing.

Certain areas will most likely be reserved for crew only or will have a limit on the number of guests permitted (such as the bridge). You’ll also find out about the head (bathroom) and other useful information, such as which bucket is for mask rinsing and which is for cameras only.

3. Understand the safety aspects.

Pay attention to safety features, such as where the life jackets are stored, and what the crew’s procedure is in the case of an underwater emergency.

4. Keep dry things dry.

It gets wet on a dive boat, so take care when retrieving items from the designated dry area.

5. Keep your gear organized.

Remember when your parents inspected your bedroom to make sure you had cleaned it? Your boat mates will thank you if your gear is neatly stored and out of the way. And respect others’ space. It can be a tight squeeze on a boat, so make sure you’re not taking up someone else’s space, with either your body or your gear.