Ondartzape Beach is a mix of rocky and sandy areas. While it is possible to swim, visitors should exercise caution due to the rocks and the strong surf conditions often present, which are characteristic of the Mundaka area. It's not typically recommended for casual family swimming, especially with young children, unless conditions are exceptionally calm. Always check local conditions and be aware of tides and currents before entering the water.

For surfing, Ondartzape Beach, being in the renowned Mundaka area, can offer excellent conditions, particularly when the famous Mundaka wave is breaking. This often occurs during specific swell events, typically in autumn and winter. For enjoying the scenic beauty and potentially less crowded conditions, visiting during the shoulder seasons (spring or early autumn) on a day with good weather might be ideal, avoiding peak summer crowds.

Ondartzape Beach is a more 'hidden' spot, which can imply slightly less direct accessibility compared to urban beaches. It's located in Mundaka, a charming coastal town. Access might involve walking down paths or steps, and parking in Mundaka can be limited, especially during busy periods. It's advisable to research specific directions and parking options in advance, as direct beachside parking might not be available.

While Ondartzape itself is a small, more secluded beach, it is located in Mundaka, a popular town. Therefore, you'll find a good selection of restaurants, bars, and cafes within walking distance in Mundaka's center, offering local Basque cuisine. For accommodation, Mundaka provides various options, including hotels, guesthouses, and apartments, catering to different budgets, all within easy reach of the beach and the town's amenities.

Ondartzape Beach's significance stems from its strong connection to the world-famous Mundaka surf area. Despite being a small, rocky-sandy spot, it benefits from the same powerful swells that create the iconic Mundaka left-hand wave. This makes it a relevant location for surfers and those who appreciate the raw, natural beauty of the Basque coastline. Its 'hidden' nature also appeals to visitors seeking a more secluded and scenic experience.