Tubing on the Russian River

Looking for a fun, inexpensive activity outside of San Francisco's foggy August weather? Go tubing on the Russian River about an hour - 1.5 hrs north of the city, bring your own tubes and some beer and float the afternoon away under sunny skies with those friends you adore.  Most of the rentals on the R.R. have a pick up point at Johnson's Beach in Guerneville.