FAQs · Destination Guide
Limestone caves, red coral walls and protected island water on Sardinia's wild northwest edge
Frequently Asked Questions
Quick answers sourced from research and local operating patterns.
May through October is the broad scuba window, with June and September the easiest all-round choices. Those months combine regular Alghero and Stintino boat programs, warmer surface intervals and lower crowd pressure than August. July and August have the fullest schedules and Asinara surface water can reach about 26°C, but specialist guides, lodging and La Pelosa access sell early. May and October can be excellent for flexible divers in warmer suits. From November through April, base in Alghero, expect cooler water and treat every boat day as forecast dependent rather than planning a guaranteed Asinara circuit.
Allow seven to ten nights for a balanced first trip. Four or five nights in Alghero support two or three Capo Caccia dive days, a weather buffer and an old-town or Neptune's Cave day. Add two or three nights near Stintino or Porto Torres for La Pelosa, a Gulf of Asinara dive and one full Asinara land or snorkel excursion. A shorter five-night trip should choose either Capo Caccia or Asinara as the underwater priority rather than forcing both. Keep the final water day flexible because wind can move boats or cancel island access.
No. Grotta di Nereo is a major overhead system, not a beginner attraction. It has multiple chambers, entrances and route options, and the correct qualification depends on the exact route authorized under current Capo Caccia rules. A diver must be comfortable with the planned depth, gas, line procedures, redundant equipment and team protocols. Beginners can still enjoy northwest Sardinia at selected open sites or training areas such as Cala Verde, then progress to walls like Isola Foradada Punta Timone with a guide. Never accept a cave booking based only on seeing daylight or following a more experienced buddy.
Private scuba and apnea in permitted Capo Caccia MPA zones require authorization under the 2026 rules. Current private fees are EUR 10 daily, EUR 20 weekly, EUR 50 monthly or EUR 200 annually. The permit does not replace operational requirements: activity is in daylight, solo diving is prohibited, designated sites and a surface reference are required, and private scuba requires at least a second-level certification. Listed caves require the specified cavern or cave qualification. Guided clients should ask the authorized center whether its operating authorization and any guest paperwork are included in the quoted price before paying.
The official public ferry runs from Porto Torres to Cala Reale and changes frequency by season. It is reduced in low season, daily in mid season and most frequent from late July through August. From Stintino, travelers usually use a park-authorized excursion or dive boat rather than the public-ferry route. A ferry ticket alone does not include island transport, a guide or dive service, and normal visitor cars cannot land without express park authorization. Reserve the return sailing and the on-island bus, 4x4, bike or guided itinerary together so the day fits the fixed departure time.
For simple shore snorkeling, start with Cala Verde or a sheltered Porto Conte beach when the wind is favorable. Asinara offers the most structured protected-area option: its 2026 site table identifies Punta Trabuccato, Cristo and Reale as snorkeling-only sites, best visited with a park-authorized operator. La Pelosa is very shallow and visually spectacular, but summer crowds and sand suspension can limit marine observation. It also requires a QR reservation from May 15 through October 15, 2026. Strong swimmers can enjoy May and October, but June and September provide warmer water and more dependable boat schedules.
Yes, provided the itinerary separates beginner sites from the destination's famous caves. Cala Verde supports shallow training and easy-entry work, and local operators can select open walls, reef slopes or sheltered routes that match an Open Water diver's depth and comfort. Many Capo Caccia signatures are advanced because of depth, walls or overhead terrain, while private MPA scuba has its own minimum-certification rule. Tell the center the exact number of logged dives, date of the last dive and any current concerns. Mixed-level groups should accept separate guides or different sites rather than allowing the most experienced diver to set an unsafe plan.
A 5mm full suit is a common starting point for the main June through September season, but many divers add a hooded vest because deeper water and thermoclines can feel much cooler than the surface. In May, October and the cool season, a 7mm suit, hood and gloves chosen for warmth rather than contact may be more appropriate. Asinara's official surface references range from about 26°C in August to about 17°C in December. Personal cold tolerance, repetitive dives and boat wind matter, so ask the operator for current temperature at planned depth before finalizing exposure protection.
The mistral is a northwesterly wind that can quickly roughen exposed western and northern routes, build current around points and make a planned cave, wall or island crossing inappropriate. It does not automatically cancel all water activity because Porto Conte and other sectors may offer a sheltered alternative. The correct response is flexibility: reserve multiple water days, let the skipper choose the site, and avoid linking a nonrefundable onward transfer to one famous dive. Freedivers and snorkelers should be especially cautious because surface chop can undermine supervision and exit control even when the underwater view still looks inviting.
For 2026, official controlled access runs from May 15 through October 15. The beach has 1,500 places per day: 500 can be booked ahead and 1,000 are released two days before the intended visit. Reservations open through the official portal, cost EUR 3.50 per person, and generate a QR code for access. Children under 12 do not require a reservation under the current guidance. Save the code offline, arrive during control hours and remember that the beach booking does not provide parking. Use only the official site because the operator specifically warns about unauthorized resale pages.
Non-divers have a stronger program than at many dive destinations. From Alghero they can explore the old town and bastions, visit the Coral Museum, tour Palmavera or Anghelu Ruju, or book Neptune's Cave by land or seasonal boat. From Stintino they can reserve La Pelosa or join a guided Asinara nature and history circuit. Asinara is best as a full day with prebooked transport linking Cala Reale, former prison areas, wildlife and Cala d'Oliva. In July and August, choose a guided vehicle or short walk because the park warns about heat, little shade and limited water.
Ospedale Civile Alghero is the main public hospital in Alghero and can assess, stabilize and arrange transfer. The Centro Iperbarico Sassarese in Sassari specializes in hyperbaric and diving medicine. A suspected decompression illness or arterial gas embolism is not a self-drive problem: call 112 for urgent medical response, use 1530 for a maritime rescue, provide oxygen if trained and available, and contact DAN Europe at +39 06 4211 5685 for specialist coordination. Asinara adds boat-evacuation time, so confirm the operator's oxygen, communications, GPS and casualty-transfer plan before departure.
A car is strongly recommended for a combined Alghero, Capo Caccia, Stintino and Porto Torres itinerary, especially with dive gear. Alghero itself is walkable and has a daily airport bus, while the direct airport-Stintino bus operates only from June through September. A car simplifies early dive check-ins, Capo Caccia viewpoints and the transfer to Asinara departure ports. It does not go onto Asinara under normal visitor rules, so reserve island transport separately. In peak summer, parking at La Pelosa and the Neptune's Cave corridor needs planning, and current cave instructions may require Casa Gioiosa parking plus a shuttle.