Spots where sand, sea, and sky come together offer certain challenges to photographers, but the results can be so amazingly rewarding. Conditions can change quickly as the sun hides behind a cloud, and conditions most certainly change slowly as the tides sink and rise and the sun and moon dance across the sky. The same patch of sea may be mirror calm and reflecting golden light, or it may be a churn of furious waves. Fogs, mists, and wind-whipped sand can make for gorgeous images even as they fool camera meters. There’s a world of possibilities waiting to be captured along these edges, whenever you visit, and with whatever Sigma lens you’ve got in your bag.