Swimmer Severely Injured by River Otter in Lake at Lassen Volcanic National Park, CA Lassen Volcanic National Park, CA Rangers are advising people to avoid entering the water in Manzanita Lake due to the threat of attack from river otters.ย A visitor was severely injured by a river otter while swimming in the area on Thursday 25th June 2020. Related: Trip Report: Late June Skiing in Lassen Volcanic National Park, CA River otter danger in […] SnowBrains | June 29, 2020 0 Comments
