These are just approximately where you could anchor in Punta Ipala (aka Caleta Tehuamixtle. The actual waypoints are listed below. We do not believe you will have much luck getting in any closer for more protection. The bay has a lot of pangas and fish pens blocking it. This last time we did get a good night's sleep though. If we had another night or two, we would have ventured on-shore but weather was coming.
(Photo credit: Pacific Mexico guidebook by Shawn and Heather)