nice pictures!!! and nice place, i went to amelia island like 4-5 years ago and have been meaning to go back ever since, but havent really had the opportunity.
canon is common for noises when there's not enough lighting so what i would do is when you have your shutter on, you get your external flash and run around and start flashing that area. BAHAHA. i'll see if i can find a picture that i did that..