The Mare Longue botanical trail

Réunion has many botanical trails. The Mare Longue trail is one of the best known. It offers a short family walk through the forest. The route consists of two circular loops, and it is possible to do just one. The forest you walk through is a remnant of the Bas colour-wood forest. Many of the species encountered are endemic and sometimes have remarkable aerial roots.

Details

3336966
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  • Walking
    Activity: Walking
  • ↔
    Distance: 2.13 km
  • ◔
    Average duration: 0h 55 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 99 m
  • ↘
    Descent: - 99 m

  • ▲
    Highest point: 291 m
  • ▼
    Lowest point: 192 m

Photos

Description of the walk

Access: head towards Mare Longue via the N2. Follow this road until you reach the sign for the Mare Longue botanical trail (on the left when coming from Saint-Pierre, just before the village of the same name, and on the right when coming from Saint-Philippe, just after the village). Then follow the signposted path (Chemin de Ceinture). Keep left at all junctions. Park at the start of the track.

(S/E) Take the botanical trail which starts to the left of the kiosk and climbs gently up an ancient lava flow already home to endemic trees.

(1) You’ll arrive near a first tree with remarkable roots. Turn left here. The signs help you identify the many endemic plant species, such as applewood, rampartwood and the small mat plant. The climb is gentle. The entire walk takes place amongst the aerial roots winding their way across basalt ground.

(2) At the junction, turn left to complete the second circular route. You’ll reach Mare Longue Forest Road 4.

(3) Follow it to the left until you reach a shelter. Join the botanical trail that starts here and head back into this beautiful forest of colourful trees in the Bas.

(4) Ignore the next path on the left leading to the Basse Vallée Lodge, and turn right to cross the track. Note a few sections here and there with corded lava.

(4) Head straight on along the track again until you reach the junction you passed on the way out.

(2) Keep left and return to the original junction.

(1) Turn left and head back to the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 192 m - Kiosk - Forêt de Mare Longue
  2. 1 : km 0.08 - alt. 200 m - Notable tree. Junction 1st circular loop - Forêt de Mare Longue
  3. 2 : km 0.6 - alt. 238 m - Return via the short circular loop - Forêt de Mare Longue
  4. 3 : km 0.7 - alt. 250 m - Crossroads, 2nd circular loop
  5. 4 : km 1.44 - alt. 279 m - Return via the long circular loop - Forêt de Mare Longue
  6. S/E : km 2.13 - alt. 192 m - Kiosk - Forêt de Mare Longue

Notes

Kiosks available at (S/E) and shortly after (2)

Worth a visit

Places of interest:
- The Mare Longue Forest

Reviews and comments

4.6 / 5
Based on 4 reviews

Reliability of the description
4.5 / 5
Ease of following the route
4.8 / 5
Route interest
4.5 / 5
buffiere isabelle
buffiere isabelle

Overall rating : 4.3 / 5

Date of your route : Jan 17, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Beautiful forest, the signposting is satisfactory
easy hike

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Bessey974
Bessey974

Overall rating : 4.7 / 5

Date of your route : Sep 22, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

A lovely little hike in a beautiful primary forest on Réunion Island
I took the opportunity to do some geocaching
I highly recommend it

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siouxfalls
siouxfalls

A lovely path through this primeval forest. Full of birdsong. A real delight.

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SylvieI
SylvieI
• Edited:

Overall rating : 5 / 5

Date of your route : Dec 11, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A well-marked, shaded and easy walk. Immerse yourself in lush greenery accompanied by the constant song of birds.

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siouxfalls
siouxfalls

Overall rating : 4.3 / 5

Date of your route : Nov 24, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A walk through this primary forest is a wonderful experience. What’s more, this forest is a birdwatcher’s paradise – something that no longer exists in mainland France

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