# Free things to do in Cascais

> 5 matching events from live listings.

Canonical: https://rockhopping.com/cascais/free  
Source: Rockhopping (rockhopping.com) — a what’s-on guide for 55 island and low-tax jurisdictions.

- **2026-08-03 17:00–18:30** — Sabores com História - Ostra (Flavors with History - Oyster) · Cascais FoodLab, Mercado da Vila Cascais, Cascais · Food · Free
  Sabores com História - Ostra at Cascais FoodLab.
  https://rockhopping.com/event/c0d270fc5b6acb3f
- **2026-08-20** — Festas do Mar — first weekend · Baía de Cascais, Cascais · Festival · Free
  The bay becomes a free open-air stage — Portuguese headliners nightly, food stalls between the Cidadela and Jardim Visconde da Luz, and a daily kids' concert. Carlota Ulrich is the first 2026 confirmation.
  https://rockhopping.com/event/a7e9f7f7a85fe924
- **2026-08-27** — Festas do Mar — second weekend · Baía de Cascais, Cascais · Festival · Free
  Round two of the bay festival — four more nights of free concerts, traditionally closing with the Nossa Senhora dos Navegantes procession and fireworks.
  https://rockhopping.com/event/e04aa3738591fedb
- **2026-08-28** — 25.º Cascais Vela · Baía de Cascais, Cascais · Sport · Free
  The Clube Naval's flagship regatta — multiple classes racing in the bay, best watched from the paredão and the Cidadela walls.
  https://rockhopping.com/event/2ac667675b3ed95b
- **2026-09-04** — J/70 World Championship · Baía de Cascais, Cascais · Sport · Free
  The world championship of the J/70 keelboat class brings international fleets to Cascais waters for nine days.
  https://rockhopping.com/event/87e02916e3034ba9