I was planning on making this trip...
...earlier this year on an H25. Unfortunately, I've discarded most of the information I was collecting after I found out I would not be able to go. The two main concerns for transiting the waterway are the controlling depth of the lake (6 feet in Sept 2001), and mast height (there is a bridge at Port Mayaca with a vertical clearance of 49 feet). The water levels of the lake rise and fall depending on how much rain the region receives during the year. The water levels were below normal until September, when the lake was re-filled by a conveniently passing hurricane... Since the levels have risen back to normal, the SW Florida Water Management District (SWFWMD) has suspended the opening restrictions on the locks in the waterway- They should now open on demand. You can get a lot of info from the SWFWMD's web pages and the US Army Corps of Engineers' pages- A search for "Okeechobee Waterway" in Yahoo will yield LOTS of potentially useful pages. I'd also recommend picking up a good cruising guide for the waterway- There are several available.Good luck, and enjoy the trip!--Jon BastienH25 'Adagio'