Three young men wearing backpacks, shorts, t-shirts, sandals and hats are standing together on a sandy surface with palm trees in the distance.
Three young people are putting on suntan location while standing on the beach together.
The young men on the beach may not be putting on suntan location [sic] at all.
A sandy surface doesn't have to be a beach.   Suntan Lotion isn't the only activity men can do in a beach like setting.
Only because there are palm trees in the distance doesn't mean it is a suntan location and sandy surface isn't necessarily beach.