A perfect day at the beach should always include ice cream. If you're visiting Cascais, a coastal town a short train ride from Lisbon, that means a trip to Santini's. This iconic gelato shop with its red-and-white striped awnings and interiors has a line out the door most days. Attilio Santini, an Italian immigrant, started the original Santini's in Praia do Tamariz in 1949. Today there are four outposts of the shop: Cascais, Estoril, Carcavelos, and the Chiado neighborhood of Lisbon. The recipe is still the original from 1949 and ingredients are always fresh and seasonal. There are more than two dozen flavors to choose from. I suggest ordering a medium so you can try three different ones. The fruit flavors are standouts, particularly the mango and fig.