Measurements of the currents close to the bottom and at the surface have been made at six stations along a section across the Strait of Georgia from Point Roberts to Galiano Island, and at two stations in Trincomali Channel. After adjusting to the maximum tidal range the mean bottom currents were about 0.3 knot with a maximum of 1 knot. At the surface the mean flood current was 0.45 knot and the mean ebb 0.85 knot, with maxima up to 2 knots. The bottom currents were periodic and appeared to be essentially tidal in character, while the surface currents were a combination of tidal and river run-off flows.