Hi lilrosie,
You may enjoy taking a cab to San Miguel. It's only $6 for a carload. The fare is $6 whether you have 1 person or 4 in the taxi. So make some friends on the ship. I noticed several fun restaurants near the coastal road and shopping areas on the local streets. Not too far from where the taxi leaves you is a huge supermarket. Please don't ask for "la marqueta" like I did. They'll only say "Do you mean the supermarket?" It is so huge that it looks like a giant K-Mart or Walmart. I'm sorry, I forgot the name of the store, but if you ask around they will be able to tell you where it is. It's walking distance along the coastal road.