Hi, just moved to Mesa, Az from N. Idaho.. It is extremely hot, so I hate depriving my 6mo dacshund from?

his walks etc. He has to stay indoors in the air conditioning now & I wish there was some place available to take him to enjoy his playtime. He is too young to let out of his crate yet, he is stiff chewing on things & I feel awful that he has to be in his play pen all day. Its a soft portable playpen, that I had to sew the bottom on bcuz he figured how to knock the sides over & climb out:) HELP.. he needs a place to run & play w/ out cooking.