Several years ago, I ran a 20 meter dipole 10 feet off the water on Bora Bora. It worked surprisingly well with a tuner on both 20 and 10.(ssb only)

water is such a great medium, wish I lived on the ocean,would probably get much more distant contacts,would love to get into china or japan from florida.

Frank, from your pix it looks like you might be in a area that frowns on antennas. If so, I would suggest a ground mounted vertical for 10-15-20 meters (with a buried wire ground plane). The JA's and BY's will be on these bands in the late afternoon here thru the night (sometimes). Pending band conditions of course. IF antennas are allowed, you would be surprised how a tri-band yagi would perform mounted on a 5' tri-pod on your roof. Nice family in the pix on eham.net, we've got 3 boys with their tickets plus 1 grandson: KE9OD, N9IHD, KA9NAP, KC9CIT; but my job is not done, 3 more kids to go plus 9 grandkids.

thanks jim for your comments,thank goodness I am in unincorporated county area and would like to get a steppir eventually,not sure it that wouod be the best and what height to place it.We have a all metal roof and when I put the dipole above it I get lots of qrn(weird but it does).maybe it bounces off the roof,I don't know.I wish I could get my 3 teenagers to get their ticket,I'll work with the yl on the younger 2 grandkids.Saw your great condition corvette,my son and I restored a 1977 vette but did not do a great job,73,frank