ok here goes,
we stayed at San Ignacio (Rice and Beans) the night before.
And rode 100 miles, we had to carry fuel to a fishing village called Insurgentes, from there it is not far down the coast to SAn Juanico(Scorpion Bay)
Here is a GPS crum trail. Hope this helps, The top of the page is basically San Ignacio and near the bottom I put a place mark for Scorpion Bay. Put this image along side a live version of Google earth and you can scroll in and stuff. i dont know how to get it to you better without you having the Garmin Mapsource software.