Cala Màrmols is an undeveloped cove on the southeast coast of the Balearic Islands, visited from the Santanyí area. There is no vehicle access to the water and no public transport to the trailhead. Most visitors park near Cala s'Almunia and continue on foot along the coast. The path is uneven and rocky, with limited shade, so sturdy footwear, a hat, sunscreen, sufficient drinking water, and food are essential. There are no toilets, showers, sunbeds, kiosks, lifeguards, or admission controls. Earlier arrival is practical because it allows the walk in cooler conditions, time to choose a place on the small sand and pebble shore, and daylight for the return. The main season is generally late spring through early autumn, with strong sun and heat in summer. June through September offers the most reliable beach weather, although the cove remains quieter than accessible beaches because of the walk. Swimming is from a natural shoreline with rocks nearby. Water conditions change with wind and sea state, so enter carefully, avoid rough conditions, and do not rely on assistance. Families should consider the approach carefully; the cove suits capable walkers comfortable without services and is less practical for easy trips with young children. Carry out all rubbish, respect the natural setting and any local notices, and check sea and weather conditions before setting out. Because there are no services or controls at the cove, personal preparation shapes the visit, from timing the outward and return walk in daylight to keeping enough water and protection for the exposed trail in both directions.