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This expedition is run in one of the most unspoiled islands in the Caribbean. Forests cover much of the island and there are many deep unsurveyed gorges. Steep forested cliffs rise straight out of the sea and sheer slopes leading into deep canyons with huge waterfalls have made use of mechanical forest clearance methods impossible in Dominica and thereby protected the forests. 20% of the island is now protected as national parks or forest reserves and the island has the largest stands of primary forest of all the Caribbean islands.

  • Overview
  • Objectives
  • Skills you gain
  • Costs to Consider
  • Site Conditions

Options include:

  • 2023 dates available (1 week terrestrial, 1 week marine):
    2 weeks – 12 June – 24 June 2023
    2 weeks – 24 July – 5 August 2023

This is an opportunity to join a team of international researchers studying how the biodiversity of the Caribbean’s “nature island”, is recovering after the 2017 hurricane. The first week will be based in a forest camp and you will rotate between a range of projects. These include joining specialist experts in different invertebrate taxa and using survey techniques such as sweep nets, pit fall traps, light traps, and flight intercept traps. Other teams measuring forest structure and assessing the rate of recovery post hurricane and the carbon stocks. Another team is working on the spread of an invasive anole species and its’ impact on the native anole species. Other projects include completing standardised point counts of bird communities across the island to quantify changes in the bird communities and mist netting to gather data on the morphometrics, moult pattern and movement and longevity pattern for the bird species encountered. In addition, nocturnal surveys include mist net and soundscape studies of the bat communities. There is also the opportunity to assist in the marine surveys at Champagne reef. Champagne reef is a unique location, which naturally mimics ocean acidification, with volcanic bubbles coming out of the ground containing carbon dioxide. The carbon dioxide dissolves into the water, thus lowering the pH in that area. Predictions are that in 100 years’ time our oceans could have a pH as low as 7.7, against the current pH of the ocean at 8.1. The Champagne reefs are therefore modelling the changes that are predicted will be happening to reefs across the world in the future. In between working on the various science projects there are regular lectures based on the last 10 years of published papers on Caribbean Island Biodiversity and Conservation.  There is also the option of completing a half day canyoning course where you will learn how to rappel/abseil down into some of the steep river gorges.

The second part of the expedition is based in the Cabrits National Park where you will be learning to dive or about Caribbean coral reef ecology. Your journey to the marine research centre begins by travelling to Roseau, the capital of Dominica, where you will join a sea mammal search on a small catamaran. Here you will learn about some of the sea mammal research taking place around Dominica, and hopefully locate a sperm whale pod using hydrophones. As well as the training elements of your marine week, there will be reef surveys taking place using novel technologies including stereo-video for estimating fish biomass and 3D modelling to measure reef complexity.

Dominica Research Objectives

The Caribbean region is a Biodiversity Hotspot and is recognised as a conservation priority area. Despite occupying just 0.15% of Earth’s surface, the Caribbean is home to 2.3% of the planet’s primary vegetation and 3.5% of all vertebrate species. Endemism in the region is also high with 100% of amphibians and 95% of reptiles found only in this hotspot. Operation Wallacea began surveying on the island in 2014, with large scale biodiversity surveys for birds, bats, invertebrates, reptiles and habitat structure. This has resulted in the discovery of many new species for the island and a much better understanding of the ecology of Dominica’s wildlife.

Terrestrial research objectives

On September 18th 2017 Dominica was hit by a devastating hurricane. Hurricane Maria hit Dominica at category five speed, with all areas of the island affected. The high winds and rains had a significant environmental impact with 30% tree loss across the island, and most of the remaining trees losing foliage and branches. Since the Opwall teams had data on forest structure and community structure of key taxa before this hurricane event and have been able to repeat those surveys post hurricane, there is a unique opportunity to quantify the effect of Caribbean island hurricanes on the biodiversity of those islands and how quickly they recover.

Marine research objectives

In addition to the forest conservation priorities, Operation Wallacea, in partnership with the Dominican Fisheries Department, have identified priority marine areas around the island for investigation. These areas are surveyed using stereo video, 3D modelling and benthic study methods. Results from these surveys will begin a marine monitoring scheme that can measure changes in the reef over time, and help advise the Dominica Fisheries department of any conservation measures that may need to be put in place.

  • Learning about Caribbean island ecology from practicals and lectures
  • Learning how to use a range of ecological survey techniques
  • Gain a skill in diving
  • Learn about Caribbean marine ecology
  • Opwall fee
  • Cost of international flights into and out of Douglas Charles airport in Dominica
  • Cost of internal travel to and from the start and end point of the expedition, plus any hotels you might require. This costs around £110 or $160 on average. Extra nights’ accommodation in Dominica costs around £55 or $80.
  • Dive equipment rental – $75 per week for a full dive kit. If you only wish to snorkel and want to hire snorkel equipment, the cost is $38 per week. Please note that wetsuits/rash vests cannot be provided – you should bring your own.
  • Park entrance fees – £50 or $75 for both the forest and marine site.
  • PADI manual and PIC card (if you are completing your Open Water qualification) – £69 or $89 approx.
  • Vaccinations – cost can vary depending on your healthcare provider.
  • All prices in GBP or USD unless specified

Most of our volunteers fundraise for their expedition costs. Find out more.

At our forest site weather can be very variable, during the day it will be hot and humid, with sporadic periods of rain. There may be days with a lot of rain. Our marine site is hot and usually dry, with occasional storms.

Fitness level
Medium – High in the forest. For some surveys you will need to hike for long periods over steep terrain. At the marine site some fitness is required for in water activities, but conditions are relatively easy

Creature comforts
Facilities in the forest are basic (tents, cold water shower and no access to the camp by road – you must cross a rivers to get to camp). There is very limited cell phone signal and no wifi. Marine site facilities are comfortable but basic. There is phone signal and limited wifi.


  • Dominica
  • Fort Shirley
  • Three Rivers Ecolodge

Want to get involved with this project?


Want to get involved with this project?

Wallace House, Old Bolingbroke, Spilsby, Lincolnshire PE23 4EX, UK
| +44 (0) 1790 763194 or +44 (0) 1522 405667 | info@opwall.com