The low early morning tides make this week (Monday through Friday) a good time to go tidepooling at Duxbury Reef in Marin County. Here are a series of postings with information and photos about visiting Duxbury.
Duxbury Reef at John Wall’s Natural California
Duxbury Reef at Low Tide at The San Francisco Mountain biking page.
Duxbury Reef at Agate Beach County Park, Bolinas at California Travels.
Map at: http://wikimapia.org/1747303/Duxbury-Reef
PDF document you can download: Tidepooling at Point Reyes
Natural History Wanderings 
Funny, I was just thinking about going out there tomorrow, so I googled “duxbury tides april 2011” and this post was the top return.
LikeLike
By: John Wall on April 21, 2011
at 1:03 PM