Riv (59°19'N., 2°33'W.), a drying reef, extends 1 mile N from Bur Ness and is marked at its N end by a beacon. Shoals extends 0.3 mile NE from the beacon and 0.5 mile seaward from the entire length of the reef. Baa of Trevan, with a least depth of 3.7m, lies 0.5 mile NNE of the outer extremity of the reef. The NW tidal current sets directly over this shoal. The bay lying between the Riv and the Holms of Ire is dangerous due to the strength of the tidal currents.

Location