If you can't afford $3 a day for a bike on CC - just plan to walk ...... it's a small & beautiful place, you'll be able to talk to people an see everything -- you'll love the stroll.
If you CAN afford $3 a day, then please don't go cheap on your experience or deny the good people of CC a little chance to make enough $ to eat.
Budgets are tough - we all have them and times are difficult.
I hope you are able to have a wonderful time whatever your circumstance.