Old-Fashioned Egg Hunt & Games. A Dunsmuir tradition continues with age-appropriate egg hunts, an opportunity to greet the Easter Bunny, games, animals and more. Bring your picnic, tour the mansion and enjoy the estate. 11 a.m. to 3 p.m. March 30. Dunsmuir Hellman Historic Estate, 2960 Peralta Oaks Court, Oakland. $5 adults. $4 kids. Free 3 and younger. 510-615-5562, www.dunsmuir-hellman.com.

Spring Festival and Children's Easter Hat Parade. Lakeshore Avenue's 26th Annual Children's Easter Derby Decorating Contest and Parade also features Spring Festival egg decorating, prizes, refreshments, fun and more. 10 a.m. to 1:30 p.m. March 30. Lakeshore Avenue Baptist Church, 3534 Lakeshore Ave., Oakland. Hat purchase is $2. Free. 510-593-3721, www.lakeshoreoakland.com.

Lakeshore Free Plant Exchange. Switch your own plants for others to create a new, instant garden. All types and sizes of healthy plants welcome, from small cuttings up to full size. Other items available. Noon to 4 p.m. March 30. Lakeshore Free Plant Exchange, 3811 Lakeshore Ave., Oakland. Free. 510-866-8482, www.plantexchange.wordpress.com.

Beast Crawl Hat Party. Be it a bowler or baseball, fez or feathers, or anything in between, Beast Crawl 2013 Hat Party fundraiser encourages participants to wear their most amazing hat to win prizes and benefit Uptown Oakland's annual literary festival, held July 6. 5 to 10 p.m. April 1. Telegraph, 2318 Telegraph Ave., Oakland. Suggested donation is $5. 510-457-1830, www.facebook.com/events/423316594422874.

Friends of Oakland Library Book Sale. Friends of the Oakland Public Library's Bookmark Bookstore hosts its spring book sale. Members' Preview Day April 4. For nonmembers, a progressive 30-50 percent off on the remaining days. Most titles priced between $2-$6. Proceeds benefit the Oakland Public Library. 10:30 a.m. to 5:30 p.m. April 4 through April 7. Bookmark Bookstore, 721 Washington St., Oakland. Prices vary. 510-444-0473, www.fopl.org/bookmarkbookstore.

Creating College-Bound Cultures of Learning for All Students. Dr. Hugh Mehan shares his insights into the critical need for nurturing college-bound cultures and programs, exploring what we know about effective programs and efforts and what it takes to make college possible for all. 4 to 5:30 p.m. April 4. Bender Room, Carnegie Hall, Mills College, 5000 MacArthur Blvd., Oakland. Free.