Wine bottle in Ocean

This is one of my first attempts at rendering video. It’s starting to look convincing but it has some issues. You can’t really see it that well in the youtube version,but there are some bizarre noise/fireflies in front of the bottle, although I can’t quite tell if it’s a sampling issue or if the glass is too thin and it’s actuallly the ocean behind it. As a bonus if anyone has any tips for shaders/lighting to get the tips of the waves to “sparkle in the sunlight” that would be great, spent a few hours playing with fresnel/mixed shaders and different lighting setups, but never quite found it. It is using cycles. Thanks.

Looks good, the cork needs to be older, maybe the edges chewed a little. The bottle is great. Joe