Friends of V.I. National Park seminars run January through April. Call 779-4940 to make your reservation. Park marine biologist Jeff Miller will lead a Marine Biology Sailing Trip on Feb. 20. It runs from 9 a.m. to 4 p.m. aboard the catamaran Allura. It includes stops at two or three snorkel spots. Meet at the park Visitor's Center dock with lunch, sunscreen and water. The fee runs $70 for non-members and $60 for members.