+−If I only had half a day in Alghero, what is the most representative thing to do?
Do a single loop of the historic centre of Alghero, stop at its one defining sight, then eat where locals eat near the market. That gives you the character of the place in three or four hours without a ticket queue eating the whole visit.
+−Where are the best viewpoints in Alghero to watch the sunset, free and paid?
Free: the highest point of the old town, the bell tower terrace when it's open, and the bridge or promenade that looks back at Alghero's skyline. Paid: a rooftop bar or tower ticket — worth it only if you arrive forty minutes before sunset to get the rail. Inland, the ridge or castle road above town gives the widest light.
+−Which public transport ticket or 24/48 h pass makes sense for my itinerary in Alghero?
validate every ticket before boarding; day passes pay off from three rides, and regional trains are cheaper than the high-speed ones If your 2-day plan is mostly on foot in Alghero with one excursion, buy singles or a multi-journey card and skip the tourist pass; if you're crossing the city several times a day or using it with museum entry included, a 48 h pass pays for itself.
+−Which areas of Alghero should I avoid at night or if I'm travelling alone?
Alghero is safe by European standards; the real risks are opportunistic. Avoid empty industrial or station peripheries after midnight, unlit parks, and packed nightlife streets where phones disappear. Walk lit main streets, use a licensed taxi or ride-hailing app late at night, and share your route if you're travelling solo.
+−Which authentic souvenirs from Alghero are actually worth bringing home?
Buy something made nearby: estate olive oil, a Deruta or Vietri ceramic, artisan pasta, a leather notebook from a workshop rather than a stall. The weekly market in Alghero and a workshop with the maker on site beat any airport shop, and you're supporting the local trade rather than an importer.
+−What can I do in Alghero on a rainy day or in extreme heat?
Keep two indoor blocks in reserve: the main museum or cathedral of Alghero, a market hall with food stalls, a long lunch, or a thermal bath or wine cellar in Sardinia — Costa Smeralda, Italy. In extreme heat, invert the day — sights before 11:00, indoors from 14:00 to 18:00, and the evening back outside. June and September for warm water and manageable prices; August is the peak of everything.
+−Act as a local who loves Alghero: what's your favourite secret corner that isn't in the guidebooks?
Locals go where there's no ticket desk: the residential lanes just outside the walls of Alghero early in the morning, the neighbourhood bar with four tables and one dish, the cemetery or convent garden that nobody photographs, and the hill road out of town at dusk. Ask the person serving you coffee where they eat on Sunday — in Sardinia — Costa Smeralda, Italy that question opens more doors than any list.