Im going to say Cave Art.. Hard knowing with out the answers to choose from.
They are abstract with simplified lines and forms.
Second of all, I would like to go to the beach with my family to have a picnic. Spending time outdoors, especially on a sandy beach can be super beneficial for our health. After the picnic we can go play beach volleyball, or swim in the water for some exercise. After playing some sports or swimming around, we can photograph the beautiful sunset amongst the shoreline.