The Tides in the lower fraser are very big and there is alot of current, it may look like its ok from the surface but there are many many undercurrents and such that it would be stupid to do such a thing. Last year we were on the lower fraser during a native fishery watching them pick there nets and one of the fisherman fell off and was drifting with the current very fast .During a big flood or ebb tide no person is strong enough to beat the current. So I recommend NOT swimming. The man was rescued from another fisherman. The boat he fell off was no bigger then a 14ft lund .pretty stupid imo