Lan Ha Bay Plankton Night Tour
An evening on Lan Ha Bay. Cruise out for sunset, swim off the boat, then watch the water light up with bioluminescent plankton after dark. Far from the crowds and the lights of Ha Long, with a local family dinner along the way.
No prepayment to check availability. We reply on WhatsApp within minutes, 7AM to 11PM Vietnam time.
Quick facts
| Duration | Around 4 hours, roughly 16:15 to 20:00 |
|---|---|
| Group size | Small group |
| Pickup | Free pickup from hotels in Cat Ba Town |
| Activity level | Easy. Suitable for most ages |
| Swimming | Optional swim stop, life jackets provided |
| Meals | Family dinner at a local restaurant, vegetarian on request |
| Guide | English-speaking local guide |
| Best time | Warmer months. Plankton glow varies with the moon and water |
| What to bring | Swimwear, towel, a light layer for the evening |
Trip highlights
- Cruise Lan Ha Bay as the sun goes down
- Swim and relax off the boat at a quiet spot
- Watch bioluminescent plankton light up the water after dark
- Pass a working floating fishing village
- Family dinner at a local restaurant
- Free hotel pickup and drop-off in Cat Ba Town
How the trip runs
Times shift with the light and the tide. The captain picks the darkest, calmest spot for the plankton on the night.
What is included
Included
- Hotel pickup and drop-off in Cat Ba Town
- Boat trip with English-speaking guide
- Family dinner at a local restaurant
- Life jackets and safety gear
- Drinking water
Not included
- Personal expenses and extra drinks
- Travel insurance
- Tips for guide and crew
Places on the route
Floating village
Cruise past a working fishing village on the water.
Sunset on the bay
Golden light over the karsts before dark.
Quiet beach
A calm, sheltered spot for the swim stop.
Good to know
Plankton is a natural phenomenon. The glow is strongest on darker nights with clear water, and it cannot be guaranteed on any given evening.
Weather calls belong to the captain. If we cannot run safely we will offer another date or a full refund of what you paid us.
Wear clothes you do not mind getting wet, and bring a towel.
Common questions
No. Bioluminescent plankton is a natural event and depends on the moon, water clarity and season. Darker nights are best. We take you to the strongest spot we know, but nature decides.
No. The swim and the plankton can both be enjoyed from the boat. Life jackets are provided if you do go in.
Yes. You are with a local guide on a small boat with life jackets, in calm sheltered water close to shore.
Yes, families are welcome. Tell us their ages when you book so we can plan.
Read more before you go
Ask us or reserve your spot
Fastest on WhatsApp, we usually reply within minutes. Or leave your details and we will get back to you.