Keeping kitty entertained while i’m out of town?

Hi All, I adopted a male cat about a month ago, and I just found out that i’ll have to be out of town for ~10 days next month. I have someone able to come over every other day, and kitty’s got a automatic feeder and two water fountains. what can i do to make sure he isn’t bored and destructive while i’m away? how can i make sure he remembers me and doesn’t feel abandoned?

thanks in advance!!