24hr layover in Manila. What should I be doing?

Going home to Toronto from Shanghai and got the cheapest one way possible (I’m a student) so now have a 24hr layover in Manila. I think it would be cool to see the city a bit but I don’t know how much time that warrants and what to even do? I’m assuming a hotel near the airport would be smart just trying not to spend a fortune. There’s no way I’m sitting in that airport for a day