There are actually three beaches in the vicinity, all quite small, but the main beach (also known as Sa Caleta) is around 30 metres long and 20 metres deep. Surrounded by gorgeous pine forest, the beach is made from golden sand and provides a gentle incline to the shallow, clear water.
You'll find a restaurant here, sunbeds and parasols for rent, and toilets. During the summer season there is a life guard. It's also popular with yachts who moor in the cove. A dinghy service brings the sailors ashore for a bite to eat at the restaurant.
The other beach next to Portals Vells is a bit smaller, El Mago, and is Mallorca's official nudist beach. It's only little, at 20 metres long and 5 metres deep but features lovely soft white sand and crystal clear waters. You can hire sunbeds and parasols and there is a beach bar for refreshments.
The final beach in this area is one cove along and is called Playa del Rei. It's a bit bigger, at 30 metres long and 40 metres deep, and has nice fine white sand next to a more rocky area. The water here is wonderfully clear and remains at a depth of 1.5 metres for over 100 metres out to sea. There is a little beach bar and basic life guarding services.