I agree that zona blue is an easy 5 to 7 minute walk and well worth the effort. My routine while in CR the week of 3/13/05 through 3/21/05 was a 930am visit to ZB. Then back to the Del Rey for a little rest. About 530pm I walked to Idem with great anticipation followed with a big smile while riding back to the Del Rey in a cab, about $1 US. Dinner and drinks and the chase is on for the BM and Key largo girls. Negotiate well with these lovely ladies and you won't be disapointed. Negotiate poorly, and well, you get what you negotiate for.
I personnaly enjoy the no hasssle MP's and always was pleasantly surprised. This was my first trip to CR and found this board extremely helpful, especially RBC100's post sometime at the beginning of March,(thanks RBC).
Take the advice, Cab it at night, walk with confidence during the day, check your map. No problem.
Enjoy. kenj8, Ken