we went about 4 years ago and the boat almost drove right up to it. trying to reach it by land is not easy. Page is where you base yourself to get the boat trip.
by the way, did you ever hear of Antelope Slot Canyon just outside Page on Route 98? it's worth looking into if your in the area.
That's very sad. I remember when there was a marina at Rainbow bridge. You might want to see a different part of the lake though April the hiking would be nice still.
Glen Canyon Dam Operations
Maybe this report will help the water levels for your trip..
Releases from Glen Canyon Dam in March will average 9,800 cubic feet per second (cfs) with a total of 600,000 acre-feet scheduled to be released for the month. On Mondays through Sundays in March, daily release fluctuations due to load following will likely vary between a low of 6,000 cfs (during late evening and early morning off-peak hours) to a high of 12,000 cfs (during on-peak hours, which in March occurs in the mid-morning hours and again in the late afternoon and early evening hours).
The release volume from Glen Canyon Dam is currently scheduled to be 600,000 acre-feet in both April and May of 2006.
"That's very sad. I remember when there was a marina at Rainbow bridge."
I don't think it's sad at all, the lower the reservoir falls the better. There's a lot more to see without the water and the exposed canyons have recovered very quickly.