QUOTE (eyu @ Sep 6 2010, 04:34 PM)

I am wondering how big are the manta rays, are they really 18-20 feet across? Also can I expect 85 degree ocean temps in October?
The big ones probably approach 18 feet or so. (I find it rerally hard to be accuraste with these numbers.) I'd guess the small ones are 10' across. Probably 12-15' is the average. Regardless of the actual length, still pretty impressive when the animal glides a foot or so above your head and all you see is belly.
Water temps should hold pretty much. I'd say maybe 82-85º would be the range. Definitely a bit warmer at the muck sites because they're in shallower water.
On a personal note, I see you're from Wilmington, DE. I grew up in Dover. And I was in Wilmington in June for Father's Day as I took my dad (who still lives in Dover) see to a Wilmington Blue Rocks game.
- Ken