Hi Izzy - just got back from our 6th visit to San Miguel - obviously we love it but the resort is very quiet with only a handful of bars and restaurants. It takes about ten minutes to walk round the resort but you can walk to another bay round the corner from San Miguel which has a small beach bar and will take about 15 minutes although it is a rough track and at night you may need a torch.
However in my view you will not get a better entertainment team anywhere else and they keep everyone amused from 11 in the morning until around 11.30 at night. At one of the evening shows Zorro, the main entertainer, asked how many people had been at the resort before and about 75% of the people put their hands up. I think this speaks for itself but as I said, it is a very small and quiet resort and there will be much more going on around the Don Toni if that is what you prefer