Horseys on the beach

Today I decided to go back on drawing horseys. I started doing some of others ideas. For example @srinikamathur asked for me to do this one. As you can see there are two horseys doing a picnic, one that is on a beach chair, a few in the water and one that is hiding behind a palm tree. I would like to know, what do you think that the horsey behind the tree is doing?
Hope you liked the drawing :)))
Here is the drawing: https://imgur.com/emD8kdN

By: Diaconu_Teodora ^_^