Let yourself go and try some of the real Mexican restaurants. After enjoying the sun and the water, you may feel like spending the rest of the day shopping or at least browsing around the shops. Put on a comfortable pair of shoes and visit the many shops of Los Cabos. In Cabo San Lucas the shops are spread out all over town so you will need to brose to see all the shops. Most shops open early and close for a couple of hours at noon or one and re-open around four and then remain open until between seven and nine.
Closing times seem to vary a lot depending on time of year.
Most vendors and stores take credit cards and US Travelers cheques. It is usually a good idea to have pesos and or US dollars with you at all times.