See

Penedo Furado de Foz do Arelho

This huge boulder with an arched opening was formed by rain and wind erosion. It is millions of years old and dates back to the Jurassic period.

free

Address: Intersection of Rua Eng. Luís Paiva e Sousa & Rua Garejau, Foz do Arelho
Getting there: NW of Caldas off the N360 road; a short hike from RoCaldas bus route 125
Hours: 24 hours daily
Price: Free

Directions Suggest a nearby place

Listing from Wikivoyage: Caldas da Rainha, CC BY-SA 4.0.

Updated 28 Sept 2026. Something wrong? Tell us.

Close by

Do
Praias de Foz do Arelho
Foz do Arelho beaches
Foz do Arelho has the two closest beaches to Caldas da Rainha, about 10 km NW of the city centre. One faces the Atlantic Ocean (Praia do Mar), and other is on the calmer Lagoa de Óbidos (Foz do Arelho–Lagoa). They are connected by a narrow channel. These beaches are popular with both Caldenses and visitors. Both beaches have earned the coveted Blue Flag (Bandeira Azul). The criteria for Blue Flag beaches cover four main areas: water quality; environmental information and education; environmental management; and safety and services.
Free
Do
Lagoa de Óbidos
Óbidos Lagoon
Lagoa de Óbidos is situated between Caldas da Rainha (Foz do Arelho and Nadadouro civil parishes) and Óbidos (Vau and Santa Maria civil parishes). The lagoon flows into the Atlantic Ocean. It offers many aquatic activities, including sailing, windsurfing, canoeing, rowing, kiteboarding, jet-skiing, waterskiing, stand-up paddling. The beaches on the shore offer opportunities for swimming, sunbathing, and making sandcastles.
Do
Escola de Vela da Lagoa de Óbidos
Óbidos Lagoon Sail School
Learn canoeing, windsurfing, catamaran, kitesurfing, SUP/paddle board, surfing, foiling, wing foil, and optimist (small, single-handed sailing dinghy intended for use by children up to the age of 15) on Óbidos Lagoon. They offer courses, group lessons, private lessons, and team building. They rent equipment and will assist with accommodation and gear storage and repair. Their bar offers beverages and light meals.
10:00–sunset, Sep & May closed Tue, Oct–Mar closed Tue–Thu, Apr closed Tue Wed
Eat
A Lareira
Portuguese and international cuisine, served in the countryside.
Sun–Thu 12:00–16:00, Fri Sat 12:00–16:00 & 19:30–22:30EUR 10-30