The Watershed Management Group leads guided bike tours of sites in the Rincon Heights Neighborhood that feature rainwater harvesting, stormwater harvesting and native habitat on Sunday, April 18. Tours begin at 10 and 11 a.m. and will meet up on the corner of Cherry Avenue and Eighth Street. RSVP is required by Friday, April 16. $5. Visit watershedmg.org/earthmonth for tickets. Call 396-3266 for more information.