The lake reaches depths of approximately 18 meters, making it significantly deeper than other nearby coastal ponds.
The park borders the much larger Roche Cove Regional Park, allowing for extended hiking transitions between the two areas.
It is part of the Capital Regional District's park system, which manages the lake's ecological health and trail maintenance.
The loop trail features an elevated wooden boardwalk section specifically designed to protect sensitive wetland flora.
Local geological history includes evidence of glaciation, visible in the exposed bedrock along the eastern shoreline.
Matheson Lake Regional Park is a 157-hectare protected area located in Metchosin, British Columbia, known for its deep, calm lake nestled within a second-growth forest. The primary recreational draw is a 3.8-kilometer loop trail that encircles the lake, offering varied terrain including boardwalks and elevated viewpoints. The lake features two sandy beaches used primarily for swimming and sunbathing during warmer months. Fishing is permitted in the lake, which is stocked by the Freshwater Fisheries Society of BC. The surrounding landscape consists of Douglas fir, western red cedar, and salal, characteristic of the Coastal Douglas-fir biogeoclimatic zone. Swimming is generally popular in summer due to the lake's sheltered position and relatively warm water temperature. The park terrain is moderately undulating, suitable for hiking but not fully accessible for mobility aids in all sections. The site remains a quiet alternative to the more heavily trafficked parks closer to downtown Victoria.
The elevated boardwalk section on the western side of the lake provides the clearest panoramic view of the water and surrounding forest canopy.
Bring insect repellent during late spring and early summer, as the marshy areas around the lake perimeter attract mosquitoes.
Check the CRD website for water quality advisories before swimming, as occasional blue-green algae blooms can occur in warmer months.
Wear sturdy hiking shoes, as the loop trail contains sections with exposed roots and uneven rocky ground.
Attempting to swim during blue-green algae warnings or bringing motorized watercraft, which are prohibited on the lake.
Leash dogs in designated areas, pack out all trash to maintain the ecosystem, and do not feed local wildlife.