Every Sunday:
Makauwahi Cave Tour. The richest fossil site in the Hawaiian islands is found east of Poipu at the Makauwahi Cave, an open ceiling sinkhole that is a uniquely preserved archaeological site. Considered a living museum, this 17-acre area serves to both interpret ancient history of Hawaiian plant, animal and human activity. Wear walking shoes, bring water. Makauwahi Reserve, 9 a.m. to 2 p.m. Donations are welcome. For information or reservations, call (808) 482-1059, or visit www.cavereserve.org. Located in Maha`ulepu, 3 miles east of Poipu.

Sunday, May 4:
May Day Brunch on the Bay. Elegant brunch al fresco on Ali`i Drive in Historic Kailua Village. Join residents and visitors for this fun spring celebration with delicious food by Historic Kailua Village restaurants along the oceanfront. Makai lawn of the Courtyard Marriott King Kamehameha Kona Beach Hotel, 75-5660 Palani Rd., Kailua-Kona. 10 a.m. to 1 p.m. Adults $25, children (12 and under ) $15. For tickets and information call (808) 936-9202 or visit www.historickailuavillage.com.