Undersea Walk in Mauritius, a unique underwater lagoon activity where visitors can walk on the seabed, see tropical fish and experience the island’s marine life up close.

Undersea Walk

Step below the surface without leaving the lagoon behind.

NorthAdventureDiscoverSeaUnique
★ 4.8 / 5 Tripadvisor1,235 reviewsTravellers' Choice 2026Booking completed on partner site
DurationAbout 20–30 minutes underwater
Best TimeYear-round, calm and clear days
DifficultyEasy
LocationNorth coast (e.g. Grand Bay, Trou aux Biches)
Pricing€65
Activity overview

Discover North Mauritius beyond the beach.

Undersea Walk is a water-based or adventure activity in Mauritius. Its main appeal is its active experience on or near the water, making it most relevant to travellers who enjoy active lagoon, ocean or adventure experiences. Travellers focused mainly on slow, land-based sightseeing may prefer to treat it as a secondary stop rather than a must-do.

Visit length varies with how deeply you explore; for organised experiences, use the operator’s confirmed duration and inclusions rather than old listings. Check current access, booking and opening information before setting out. Pair it with other attractions in the same part of the island to keep the day practical.

Explore the marine environment

Listen carefully to the safety briefing

A closer look below the surface

Avoid touching coral or marine life

Visibility depends on conditions

Morning sessions often have the clearest water

Operator guidance is essential

Bring a towel and change of clothes

A different way to experience the lagoon

Check sea and weather conditions before the activity

Check Availability →Reservations are completed on partner sites.
Highlights

What Makes Undersea Walk Stand Out

  • ✓Explore the marine environment
  • ✓A closer look below the surface
  • ✓Visibility depends on conditions
  • ✓Operator guidance is essential
  • ✓A different way to experience the lagoon

What's Included

These inclusions are listed for this activity.

  • Helmet
  • Guide
  • Safety briefing

Not confirmed as included

These items are excluded, recommended to bring, or not confirmed as included.

  • Swimwear should be brought
  • Towel should be brought
  • Underwater camera if desired should be brought
Confirm transfer, equipment, dietary and accessibility requirements with the activity operator before booking.
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Photo Gallery

See the Experience Before You Go

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Experience Flow

Experience Flow

  1. 1

    Check in with the operator

    Meet the activity team and prepare the equipment before entering the water.

  2. 2

    Complete the equipment briefing

    Listen to the safety guidance and get comfortable with the equipment before setting out.

  3. 3

    Enter the water with the guide

    Enter the lagoon or sea when conditions are suitable and begin exploring below the surface.

  4. 4

    Explore below the surface

    Move through the main marine area at a controlled pace, following the guide or activity route.

  5. 5

    Take in the marine setting

    Take time to observe the underwater environment without disturbing the marine setting.

  6. 6

    Return to the surface

    Return to the exit point, remove the equipment and finish the experience back on shore or aboard the boat.

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Before you get on the water

Before you get on the water

  1. 1Listen carefully to the safety briefing
  2. 2Avoid touching coral or marine life
  3. 3Morning sessions often have the clearest water
  4. 4Bring a towel and change of clothes
  5. 5Check sea and weather conditions before the activity
  6. 6Use sun protection and secure loose belongings
  7. 7Bring a waterproof option for your phone or camera
  8. 8Follow the guide or crew instructions throughout
  9. 9Confirm inclusions and personal requirements before booking
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Traveller reviews

Strong independent social proof.

Current Tripadvisor data is shown here because Mauritius Explored does not publish review content.

4.8 / 51,235 Tripadvisor reviews
★★★★★

Tripadvisor currently ranks Undersea Walk highly among local attractions. View source →

★★★★★

A recent couple praised the knowledgeable guides, conservation insight, wildlife sightings and the overall experience.

AndyBInWiltshireTripadvisor review summary · February 2026
★★★★★

Another couple described the experience as memorable, highlighting guide interaction, frequent stops and a well-organised outing.

Mary STripadvisor review summary · August 2025
★★★★★

A hiking review highlighted the guided trail, endemic trees and fauna, deer sightings and scenic stops.

IgnacenendazskiTripadvisor review summary · September 2025
Check Availability →Popular guided experiences are best checked before your travel date.
Undersea Walk: quick answers

Undersea Walk: quick answers

What is Undersea Walk?+

Undersea Walk is a water-based marine experience in north Mauritius.

Why visit Undersea Walk?+

Visit for time below or at the surface of the lagoon with a closer look at the marine environment.

Who is Undersea Walk best for?+

It suits travellers comfortable in the water who want more than a standard beach stop.

What should I check before going?+

Sea conditions affect visibility and access; confirm equipment, swimming requirements and operator guidance before joining.

What should I bring?+

Bring only what fits the activity, plus water, sun protection and suitable footwear where relevant.

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