The 4th annual Sea of Blue Autism Awareness Walk/5K is on Saturday, April 29 from 8 to 11:30 am at the Neighborhood House in Northeast Harbor. This two-mile walk and 5K run raises awareness and funds for local and state autism agencies. Registration is $15. The event also features drawings, raffles, a silent auction and the Darling’s Ice Cream Truck for a Cause. For more information, visit www.seaofblueautism.com.