Summer babes?

Brianna • 23. Student & mamabear to two handsome boys♡
My son is due mid-june, right as the weather becomes "summery" and we have a 2yr old aswell so I know trips to the cottage/beach/parks will be in the schedule. Just wondering what you ladies with summer babies did when it came to efficient shade, keeping cool and sunscreen as most childrens sunscreens have an age requirement of 6months+. My first son was born in september, so I know nothing about this. TIA☺️