Double Dipseaby Owen BarderJune 27, 2005Grethe and I ran the Double Dipsea on Saturday – nearly 14 miles of gruelling, hilly trail running. Check the course profile. Here is the Marin Independent Journal’s review of the race. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.