What to Wear for a Kona Manta Ray Night Snorkel
Planning your first Kona manta ray night snorkel and wondering what to wear?
Packing for an evening on the Big Islandâs coast is a little different from packing for a daytime snorkeling trip. The ocean around Kona can remain pleasantly warm in October, but once the sun goes down, the combination of evening air, wind, and wet skin can make the boat ride feel much cooler.
The good news is that you donât need a complicated packing list. A swimsuit, a couple of practical layers, and a few comfortable essentials can go a long way toward keeping you comfortable throughout the evening.
Hereâs what to wear and bring for a Kona manta ray night snorkel.

Start With Your Swimsuit
Your swimsuit is the obvious starting point.
Youâll want something comfortable that stays securely in place while youâre in the water and moving around the boat. A well-fitting swimsuit also makes it easier to get ready for the snorkeling portion of the experience without needing to change immediately before entering the water.
If you tend to get cold easily, consider bringing an additional warm layer for before and after the swim.
Hawaiiâs Ocean Can Still Be Warm in October
October is a comfortable time to be in the water around Kona.
Water temperatures can remain in the upper 70s°F, so the ocean itself may not feel particularly cold when you enter. This is one reason a Kona manta ray night snorkel can be such an enjoyable fall activity.
However, remember that your body can feel very different once you leave the water.
You may be wet.
The sun has gone down.
The boat may be moving through an evening breeze.
That combination can make you feel chilly even when the ocean was comfortable.
This is why what you wear after the snorkel matters just as much as what you wear in the water.
Bring a Windbreaker or Light Jacket
A lightweight windbreaker is one of the most useful things to pack for a nighttime boat trip.
You donât necessarily need a heavy winter coat. Instead, look for something lightweight that can block the wind and provide an extra layer once youâre out of the water.
A windbreaker is particularly useful during the boat ride back toward shore when the evening air and ocean breeze can become more noticeable.
It also packs easily into your beach bag before the tour.
Pack a Warm Fleece or Sweatshirt
If you know you tend to get cold, bring a warm fleece, sweatshirt, or similar layer.
You may not need it while snorkeling, but youâll appreciate having it once youâre back on the boat.
A soft fleece layer can also be more comfortable than relying on a single heavy jacket. You can put it on after drying off and remove it if you warm up.
For an evening ocean adventure, layers are generally more practical than one bulky piece of clothing.
Bring Two Towels
A towel is an obvious necessity after getting out of the water, but bringing two towels can be especially helpful.
Use one towel to dry yourself after the snorkel and keep the second available as an additional layer while you’re on the boat.
A dry towel can provide a surprising amount of comfort when youâre sitting on a boat after sunset.
If your tour operator provides towels or has specific recommendations, follow those instructions first.
Don’t Forget Dry Clothes
Your post-snorkel clothes should be comfortable, dry, and easy to put on.
Consider packing:
- Dry shorts or lightweight pants
- A clean shirt
- Warm socks if your feet tend to get cold
- A fleece or sweatshirt
- A windbreaker or light jacket
Changing into dry clothing after the snorkel can make the ride back much more comfortable.
You donât need anything fancy. Think practical, comfortable, and easy to change into.
What About Footwear?
Wear comfortable footwear that is appropriate for a boat environment and follow the operatorâs instructions regarding what is permitted onboard.
Avoid bringing unnecessary shoes or bulky items that can get in the way.
For many guests, the simplest approach is best: wear something comfortable for the departure and bring only what you need for the water and the ride afterward.
What Should You Avoid Wearing?
There are a few things that generally arenât necessary for a Kona manta ray night snorkel.
Avoid packing heavy clothing that will be difficult to manage on a boat. You also donât need multiple bulky layers if a lightweight windbreaker and fleece will provide enough warmth.
Itâs also best not to bring valuables or unnecessary items into the water.
Your goal is to keep your belongings simple so you can focus on the experience.
Bring Two Towels
A towel is an obvious necessity after getting out of the water, but bringing two towels can be especially helpful.
Use one towel to dry yourself after the snorkel and keep the second available as an additional layer while you’re on the boat.
A dry towel can provide a surprising amount of comfort when youâre sitting on a boat after sunset.
If your tour operator provides towels or has specific recommendations, follow those instructions first.
Don’t Forget Dry Clothes
Your post-snorkel clothes should be comfortable, dry, and easy to put on.
Consider packing:
- Dry shorts or lightweight pants
- A clean shirt
- Warm socks if your feet tend to get cold
- A fleece or sweatshirt
- A windbreaker or light jacket
Changing into dry clothing after the snorkel can make the ride back much more comfortable.
You donât need anything fancy. Think practical, comfortable, and easy to change into.
What About Footwear?
Wear comfortable footwear that is appropriate for a boat environment and follow the operatorâs instructions regarding what is permitted onboard.
Avoid bringing unnecessary shoes or bulky items that can get in the way.
For many guests, the simplest approach is best: wear something comfortable for the departure and bring only what you need for the water and the ride afterward.
What Should You Avoid Wearing?
There are a few things that generally arenât necessary for a Kona manta ray night snorkel.
Avoid packing heavy clothing that will be difficult to manage on a boat. You also donât need multiple bulky layers if a lightweight windbreaker and fleece will provide enough warmth.
Itâs also best not to bring valuables or unnecessary items into the water.
Your goal is to keep your belongings simple so you can focus on the experience.
What About Sun Protection?
Even though the manta portion of your tour takes place after sunset, sun protection can still matter during the earlier portion of your evening.
If your experience includes time on the boat before sunset, consider bringing:
- Reef-conscious sunscreen
- Sunglasses
- A hat
- A lightweight cover-up
Apply sunscreen according to the product instructions and follow any guidance from your tour operator regarding products used before entering the water.
Your Ideal October Packing List
If you’re visiting Kona in October and planning a manta ray night snorkel, this simple checklist can help:
Wear:
- Comfortable swimsuit
- Comfortable footwear appropriate for the boat
Pack:
- Light windbreaker
- Warm fleece or sweatshirt
- Two towels
- Dry change of clothes
- Reef-conscious sunscreen
- Sunglasses
- Hat
- Personal medications
- Waterproof phone or camera setup if permitted
The most important item isn’t necessarily the most obvious one.
Bring something warm for after the swim.
The water may be warm, but the evening air can feel surprisingly cool when youâre wet and sitting on a moving boat.
What to Expect After Sunset
One of the most memorable parts of a Kona manta ray tour is the transition from daylight to nighttime.
You may begin your evening watching the sunset over the Kona Coast. As darkness arrives, the atmosphere changes. The boat becomes quieter, the coastline fades into the background, and the underwater lights become the focus.
Eventually, the manta rays may begin moving through the illuminated water as they feed on plankton.
Having the right clothing means you can stay focused on that experience instead of thinking about how cold you are.
Make Comfort Part of the Experience
A manta ray night snorkel is about much more than getting into the water.
Itâs the boat ride.
The sunset.
The nighttime ocean.
The anticipation before entering the water.
And the moment you see a manta ray glide through the illuminated water below you.
Packing a few simple layers helps you enjoy the entire experience from beginning to end.
If you’re planning an October trip to Kona, don’t let the warm daytime weather convince you to leave your jacket at the hotel. Bring a light windbreaker, a warm fleece, and two towels, and you’ll be better prepared for the evening.
Plan your Kona Manta Ray Experience
Ready to experience Kona’s nighttime ocean environment?
Sunlight on Water offers manta ray and ocean experiences along the Kona Coast, giving guests the opportunity to experience the water around the Big Island after sunset.



