What can I do with my best friend?

He's a guy, and i'm a girl and we aren't really allowed to see each other this summer because my parents are very strict, and I want to see him. I go to the movies with my other friends Brianna, and Sabrina on Tuesday, but that's during the week and no one can take him because everyone is at work in his house. Help? I really miss him, and I've already asked my mom if I could go somewhere with him and she already said no, so I am going to have to secretly see him. Any suggestions, or If you've had an experience like this and it worked out, then tell me? My dad is home everyday, so he wouldn't be able to come over and so is my sister, so they need to think i'm with my friends!