This might be a silly question, but does anyone have any advice about what my 6/almost 7 month old should hang out in when we go to the beach at the end of August? When we took DS1 to the beach for the first time he was only a couple months and just slept on a blanket or in a car seat carrier the entire time. The second time he went he was over a year and was very content just sitting right in the sand and playing the whole time.

DS2 does not like to hang out in his car seat but I don't think he will be a stable enough sitter for me to plop him down in the sand either. What can he hang out in that won't be a pain to clean if it gets sandy?