I have just discovered Ed Hardy shoes (www.edhardyshop.com ). They are made by a French designer who uses one of the great tattoo artist's creations to decorate many items, including shoes for men and women.
While they may not have all the engineering of "real" athletic shoes, they come in a number of styles _low cut, high top, boater, jogging, etc. They also are so unique and appealing, I think they are probably safe enough for some light sailing or walking. Plus, you will look so great, you will want to go outside and show off!