Sundays: Makuahi Cave Reserve Tours.  At the center of its many attractions is Hawai`i’s largest limestone cave, the richest fossil site in the islands, and a uniquely preserved archaeological site. It's a living museum dedicated not just to the past, but also to experiment in native species conservation.  Located in Maha`ulepu.  Guided tours 9 a.m. to 2 p.m.  For information call (808) 482-1059 or visit www.cavereserve.org.