Our guide was fabulous and made an unscheduled stop so we could see the palace Dali built for his Gala. The Costa Brava is simply beautiful. The water is a very clear blue/green and warm enough for swimming. We didn't have snorkeling masks but bought them at a shop when we stopped at the beach. There were lots of fish to see very close to shore. A black bird, possibly a corcoran, swam underwater right past me. How often does anyone see that? Girona was a well-preserved medieval town which we enjoyed tremendously. If you can take only one excursion, this day trip is the one you should not miss.