A snorkel day on Komodo: current, kit and odds

Look first, then swim. Four words do most of the work: current, slack tide, drop-off and reef top.

Current is moving water, and at Manta Point it can run strong enough to carry you along the reef faster than you can kick back against it, which is why it's a spot for confident swimmers. Slack tide is the pause between tides, when the water barely moves. A drop-off is where the reef falls away into blue. The reef top is the shallow shelf, and it's where beginners belong.

Watch the first swimmer for ten seconds. If they drift fast, wait.

The water sits at 25 to 29 degrees Celsius all year. Visibility is what changes. It's around 20 to 30 m in May and 10 to 15 m from December to February.

The seasons follow a pattern. April to June and October to November are calm and clear. July and August are windier. January and February are the roughest. That's the pattern, not a forecast, and your day can differ.

One habit helps more than any gear. Float face-down for a full minute before you kick anywhere. Your eyes adjust to the light, your breathing settles, and the reef comes into focus.

Eat light. Sit low. Watch the horizon when the boat moves. If the sea gets to you, take the tablet you've already tried at home before you board, not after the first swell, and tell the crew early. They'd rather know at the first stop than the third.

Pack for the water first.

• A mask that fits. Press it to your face without the strap and breathe in. It should stay put.
• A snorkel you've already breathed through at home.
• Reef-safe sunscreen, on before you board.
• A rash guard. It beats sunscreen on your back.
• A dry bag and a small towel.
• A wrist strap or clip so the mask stays with you.
• A life jacket if you're not a confident swimmer. Wear one at Manta Point.

Both boats carry snorkel gear and a tender for the beach landings.

Defog the mask before you go in, with a drop of baby shampoo or a defog gel. Do it on deck.

Rinse everything in fresh water after the last swim. Salt dries hard on straps, and a stiff strap snaps at the ladder.

Manta Point is a drift. You don't swim to a spot and stay there.

The boat drops you upstream and you float along the reef with the current. No anchoring. The reef sits in 3 to 15 m of water. Tide and current decide where the mantas show up, so Manta Point and Taka Makassar often swap places in the day's order.

On the 3 days 2 nights plan, Manta Point comes on day 2, after Taka Makassar. Your open-trip order is confirmed when you book.

Upwelling can drop the water near Manta Point to about 22 degrees. A thin rash guard helps.

Keep your hands and feet off the reef and stay with your group.

Don't chase a manta. One feeding near you will leave if you splash at it. Float, stay low and let it pass.

Pink Beach is where the sand turns pale rose. The color comes from bits of red coral mixed into the sand. Leave every piece where it is.

On the charter it's listed as snorkeling and free time at Long Beach. The reef starts close to shore, and most swimmers find it easy. The current is mild, and mornings are calmer, with softer light.

Two more things. High tide gives you the whole reef. Crowds peak between 10.00 and 14.00 in high season, with tour boats stacked up from about 11.00 to 13.00.

A midday stop lands in that window, which is the trade for packing five swims into one day 2.

Walk the beach after the swim, not before, because sunscreen and sand on your fingers end up on the inside of the lens the moment you adjust the strap. Greasy hands fog a mask.

Pink Beach is for floating and looking. It isn't a dive site.

Taka Makassar is the opposite case. The sandbar only shows at low tide and can sit underwater at high tide. There's almost no shade. Bring a hat.

We can't promise a manta. Nobody can.

Sightings are best from December to March, with January and February strongest, and July to September is good too. Reef mantas also turn up at cleaning stations in other months. Even the guidebooks disagree on the exact peak, so treat any month as a range.

Season, tide, current and luck all play a part. Some days the water is full of them. Some days you get a turtle and a lot of blue.

So we sell you the route and the water, not a sighting.

Go in the peak months and your odds go up. Go in a calm month like May or October and you trade some of those odds for clearer water, a smoother crossing and a reef top you can actually see from the surface. Both are fair.

July and August also bring the biggest crowds of the year, and busy anchorages. September keeps the mantas and drops the wind. It's a strong shoulder month.

Ask us which month fits your plan.

Most people feel fine on a boat this size. Some don't. Do this, in order.

• Take a tablet 30 to 60 minutes before sailing, not after you feel ill.
• Sleep well the night before and eat a plain breakfast.
• Sit midship on deck, where the boat moves least.
• Watch the horizon, not your phone.
• Tell someone on board early.

That's general advice, not a medical plan. Ask your pharmacist which tablet suits you.

The dry months are calmer, and January and February are the roughest. Nobody can predict the sea on your day.

If you're worried, say so in your first message. We'll tell you which cabin deck and which month we'd pick.

If you feel ill in the water, signal early and get out. A short rest in the shade fixes the day for most people.

Ginger sweets and dry crackers are cheap and fit in a pocket.

Plan the day around the water and bring what you need. The boat moves between stops at an easy pace, so there's time to snorkel, rest and dry off before the next one, and nobody rushes you back aboard.