Hey! We were out on Lake Hartwell too! We kayaked out to a little shoal from Hart State Outdoor Recreation Area (Georgia side),where we were tent camping. It was so cool to see the eclipse from there and also experience a 360° sunset.
That lake was bathtub warm. I’m used to cooler flowing water.
Got a lot of great pics. Have taken many full sun and night sky pictures before but never a total eclipse. So I missed some obvious shots. This was the only one that showed the looping solar prominences.