A great theme, Anders, and a wonderful banner shot by Mitch. Here are my offerings:
An egret all by herself, hoping for a meal.
A lonely tree on a beach in Michigan. The white puffs are seagulls.
This dog had been brought to the dog beach in Florida, but he was bewildered by the water and afraid of the other dogs. A few days later he had gotten used to it and was enjoying himself.