How to reach:
To reach the tidal marks from Wrangell via boat, proceed 26.3 km (14.3 nm) south from Wrangell Harbor through Zimovia Strait until abeam of Anita Point. Then proceed 21.5 km (11.7 nm) SE through Zimovia Strait until abeam of Thoms Point located north of the north tip of Frost Island, on the southernmost tip of Wrangell Island. Then proceed 1.1 km (0.6 nm) NW of the southernmost extent of Wrangell Island. The bench marks, staff, and tide gauge were located on the beach in the vicinity.