Brentwood collaborates with the Department of Earth and Ocean Sciences at UVic to host a data collection buoy that remotely senses a range of environmental factors and transmits them to a website that Brentwood students can analyze. Cameras and hydrophones allow students to view and listen in to the ocean fauna. The monitoring project forms part of CANARIE - Canada's Advanced Research and Innovation Network. It also links to the NEPTUNE and VENUS projects that are currently gathering data from the ocean floor on both coasts of Vancouver Island.  In addition, Brentwood students are using LabQuest, their own portable data gathering devices, to provide information on the changing salinity, temperature and nutrient levels within the Mill Stream estuary itself.

The Bamfield Marine Sciences Centre is a marine biology research hub, located on the West Coast of Vancouver Island.  Its researchers are at the forefront of ocean discoveries, protection of habitat and re-introduction of species into the Northeastern Pacific Ocean. Every year the Biology 12AP class makes the traditional trek out to the west coast to take part in the world-famous Public Education program.

Students participate in science labs at the marine station complimented by excursions along the coastlines of Barkley Sound and Pacific Rim National Park. The surrounding dense and heavily populated temperate rain forest houses a variety of species of trees unique to the west coast climate. The return trip features a stop at picturesque Pachena Bay just outside of Bamfield.

At the beginning of October, the entire Grade 9 class embarks on the initial Foundations 9 trip. This is a three-day outdoor expedition at Strathcona Park Lodge, located towards the north end of the Vancouver Island. Activities led by Brentwood staff explore the meaning of the Brentonian Code, empathy, core values, and decisions making. These activities are woven within a variety of outdoor experiences offered by Strathcona Park Lodge. Activities such as tree climbing, high ropes, canoeing, hiking and team building games push students to identify their own fears, risk tolerances and learn about themselves and their group members. In the spirit of west coast First Nations Art, students choose an animal to represent themselves in order to see how they fit into the larger group. They arrange this into a group totem pole which they create on a canvas.