If it's not too hot, Santa Ynez Valley is a great place to bike. You can rent bikes from Santa Barbara Wine Country Cycling Tours in Santa Ynez, Pedego Electric Bikes Los Olivos, or Dr J's Bicycle Shop in Buellton. Foxen Canyon Road (there are 16 wineries along this road), Drum Canyon loop, and Solvang β Santa Rosa Road loop are all good options for longer rides.
Santa Ynez Valley is known for its wineries. There are a ton of beautiful vineyards in the area that you can drop into for tastings, and many of the vineyards also have smaller tasting rooms in the quaint downtown areas of Los Olivos, Los Alamos, and Santa Ynez.
SY Kitchen, Brother's Restaurant at the Red Barn, Nella's Kitchen & Bar, The Victor Restaurant & Bar, and Pony Cocktails Kitchen are all top rated restaurants in the area. If you are looking for breakfast, there are lots of good bakeries in the valley including Bob's Well Bread and Olsen's, and Ellen's or Paula's pancake house for Danish pancakes.
About 45 minutes over the hill from Buellton you can surf at Jalama Beach or El Capitan State Beach, and about 45 minutes down the coast you can check out all Santa Barbara has to offer. If you're feeling lucky, Chumash Casino is right there in Santa Ynez, and if you win big, there's lots of boutique shopping throughout the valley. Chances are, one of the towns in the valley will be hosting some sort of food/wine oriented festival while we're there.