How to visit the Neptune Caves: the complete guide

The Grotte di Nettuno are among the most fascinating natural attractions in Sardinia.
Located in the heart of the Capo Caccia promontory, just a few kilometers from Alghero, these sea caves carved by time offer a unique experience among stalactites, stalagmites, and a rare underground lake of extraordinary beauty.

Whether you are a nature lover, a photography enthusiast, or simply in search of a magical place, the Neptune Cave will leave you in awe.

In this guide, we’ll explain how to visit the Grotte di Nettuno, how much the entrance ticket costs, and when to go to fully enjoy this natural wonder.

How to get to the Neptune Caves

If you’re wondering how to reach the Grotte di Nettuno, there are two main options:

By sea (boat access)

This is the most convenient and scenic way to get to the Neptune Cave in Alghero. Boats depart daily from the Alghero marina or from Porto Conte. The trip itself offers breathtaking views of the coastline and Capo Caccia.

By land: the Escala del Cabirol

If you prefer walking, you can access the caves through the spectacular staircase known as the Escala del Cabirol.

But how many steps are there to reach the Neptune Caves?
Exactly 654 steps carved into the rock, descending along the cliffside of the promontory down to the cave entrance. The view along the way is stunning, but remember, you’ll have to climb back up afterwards!

Visiting the Neptune Caves: schedules, duration, and tips

A visit to the Neptune Caves in Alghero is always guided and lasts about 30–40 minutes. Entry is at fixed times and visitors join groups led by an expert guide who explains the history, limestone formations, and curiosities of the site.

How long does it take to visit the Neptune Caves?

Including possible waiting time, the guided tour itself, and the journey to reach the caves (especially if you use the Escala del Cabirol), we recommend planning for at least 1.5 hours in total.

How much does it cost to enter the Neptune Caves?

Many travelers ask about the ticket price for the Neptune Caves. Here are the latest details:

• Full ticket: €14
• Reduced (children, students, seniors 65+): €10
• Free: children under 6, disabled visitors + companion

Tickets can be purchased on-site, but during high season it’s best to book online, especially if you’re arriving by boat.

We always recommend checking the official website for the most up-to-date opening hours and ticket prices.

When to visit the Neptune Caves

The best time to visit the Neptune Caves in Sardinia is from April to October, when weather conditions allow access by sea and the light entering the caves makes the atmosphere even more spectacular.

What to wear and what to bring to the Neptune Caves

Even if it’s hot outside, inside the Neptune Cave the temperature remains around 18°C (64°F). Here are some practical tips:

• Wear comfortable shoes (especially if you’re taking the Escala del Cabirol)
• Bring a light sweater
• Avoid carrying heavy backpacks
• No need for flashlights: the caves are fully lit
• If you arrive by boat: don’t forget sunscreen, a hat, and water

What to see inside the Neptune Caves

Once inside the Neptune Caves in Alghero, you’ll find yourself in a surreal world:

• Lake Lamarmora, with its crystal-clear waters
• The Hall of Ruins
• The Organ, a limestone formation that resembles organ pipes
• Hundreds of stalactites and stalagmites shaped by time

Every corner tells the story of millions of years of geological history, wrapped in an almost mystical silence.

Where to stay near the Neptune Caves

To experience the magic of Alghero and its caves in full tranquility, we recommend staying at Villa Flor in Stintino.

A retreat immersed in nature, offering exclusive services, a private pool, and tailor-made experiences such as boat tours or a personal chef.

It’s the perfect base for visiting the Neptune Caves, relaxing away from the crowds, and discovering the authentic beauty of northwestern Sardinia.

Visiting the Neptune Caves in Alghero is an experience that stays with you. Whether you choose the boat or the Escala del Cabirol, be ready to step into one of Sardinia’s most fascinating natural wonders.

Bring your camera, wear the right shoes, and let yourself be amazed.