Coastal sex positions. Another good item is a big sun-blocking umbrellawhich can be used to shield your bodies from the eyes of passersby. The Sexy Sprinkler. It's great to get the face-to-face eye contact, but you can also mix it up by facing away. Once you're at your desired locale, stretch out on your side, resting your head on your bottom arm for cushioning. Straddle his lap and take him inside you. Cosmo 's most time-tested solution? Submarine The feeling of weightlessness combined with the sensual deprivation of not being able to hear will allow you to surrender to bliss. He can then pull you incredibly close for the deepest possible penetration. Because you're on vacation and you can have sex wherever you damn well please.