exactly what I found so big thanks for confirmingHi Randy,
Interesting problem. I found a site that lists the tides at Ft Meyers which is close and the sunrise.
From this we see that
March 3 low tide at 6:12 and sunrise at 6:47
March 4 low tide at 7:29 and sunrise at 6:46
March 5 low tide at 8:23 and sunrise at 6:45
March 17 low tide at 7:21 and sunrise at 7:32
March 18 low tide at 8:25 and sunrise at 7:30
The thing to note the low tide at a particular area can be quite different than at a nearby location. So I think you are close with your dates on this.
Hopefully this helps,
Alexis and Georgie Beagle
" good luck and take Chrissie with you she'll know where the birds are..." - Georgie Beagle
Wow! what a great shot!