SF Bay

 

I swim in the SF Bay whenever here, April being one of the coldest months for water temp as the bay estuary captures the Sierra's snow-melt resulting in temps at around 48-52f. After the initial shock of the jump, I pay the cold no mind and swim for about an hour or so.  One turn around the inside of the "cove", below, is 1500m or c one mile to the regulars but my watch and arm-count suggest more like 1200m.