Try this
If you are stuck (no pun intended) with your present dock/marina, get a chart of the area to help you locate (and avoid) the shallows. If a chart doesn't exist, spend some time poking around in the channel, learn where the shallow spots are and make some notes. Better yet, you could try making your own chart of the channel. It's not that hard if you have some time, a GPS, a dinghy and a handheld depth sounder or a long stick with foot marks on it. That's how the guys who write cruising guides do it.remember, there are only two types of sailors; those who run aground and those who lie about it.Here's a tip I learned the hard way. Moving weight onto the bow will free a wing-keeled boat faster than heeling it, because the wings can dig in. Of course, moving my 250 lb bulk around on an H23 will do all kinds of marvelous things that the designers never intended.On one of my worst groundings, I simply stepped overboard into thigh deep water (shoes on for safety). The reduced weight was enough to float the boat free. I just walked it to deeper water and clambered back aboard.If all else fails, trade your H25 for a water-ballast boat. Good luck.PeterS/V Raven