Wording For Honeymoon Themed Bridal Shower Invitations

I am throwing a bridal shower with a beach/honeymoon theme. The catch is that the couple is requesting money instead of gifts to help pay for the acutal honeymoon. The Groom to be has been on his own for a while and the couple do not need many traditional shower gifts. How would I word the invitations? The couple have also put together a small gift registry at a local store, and would like to add that to the invitations for people who would prefer to give gifts instead. Any wording suggestions would be helpful. Thanks so much!