Cancún

December–April for dry, breezy days; May–June is hot and quiet. September–October is the peak of the hurricane season and the wettest stretch of the year. In short: The dry season from late November to April is the reliable window around Cancún — warm, sunny and the reason prices peak at Christmas and Easter. May and November are the value months. June to October is the rainy and hurricane season: hot, humid, cheapest, with afternoon storms.

Start with Museo Maya de Cancún & San Miguelito ruins, El Rey archaeological site, Nichupté lagoon at sunset, Mercado 28 in downtown and Isla Blanca sandbar. Keep one morning for the coast near Cancún. Three days — the centre on foot, the flagship sight plus market, one booked excursion into Riviera Maya. Five days — add a second excursion and a slow day for museums, food and a local festival if the dates line up. Seven days — add two longer trips further into Riviera Maya and a rest day. Group each day by walking distance and never cross Cancún twice in one day.

Mexico needs no tourist visa for EU, UK, US, Canadian, Australian and most South American passports for stays up to 180 days; you receive an electronic entry record (FMM) rather than a stamped card at major airports. Bring a passport valid for the whole trip, an onward ticket and an address for the immigration form. No vaccinations are mandatory, though hepatitis A and typhoid cover is commonly advised, plus mosquito precautions on the coast. Requirements change: confirm against your own government's travel advice and the official immigration site before you book.

Cancún is safe for visitors by the standards of Mexico (Quintana Roo): violent crime is rare and the real risk is opportunistic — pickpocketing on crowded transport, at photo spots and in busy markets, plus unmetered taxis and card machines pre-set to a higher amount or your home currency. Avoid deserted station areas and unlit outskirts late at night, use the official taxi rank or a ride-hailing app after dark, keep your bag in front of you in queues, photograph your passport, and check your own foreign-office travel advice page before departure. Travel insurance with medical cover is worth it.

The R-1 and R-2 buses run the Hotel Zone every few minutes for a flat fare. Use authorised airport taxis or ADO coaches — the ADO to Playa del Carmen takes an hour and costs a fraction of a transfer. In Mexico (Quintana Roo), ADO coaches link the whole coast cheaply; colectivos run Playa–Tulum all day; hire a car only for Bacalar, Valladolid and Chichén Itzá, and carry pesos for the toll road For accommodation, stay inside or immediately beside the historic centre of Cancún for a first visit: you walk to the sights and save two taxis a day. The edge of the old town is the value option — a few minutes further out, noticeably cheaper and quieter at night. Ask for a room over a courtyard rather than a bar street.

Prioritise Museo Maya de Cancún & San Miguelito ruins, El Rey archaeological site, Nichupté lagoon at sunset, Mercado 28 in downtown and Isla Blanca sandbar. What you can skip without regret: the restaurants with photo menus and touts on the main square, any hop-on bus if the centre is walkable, and paid "panoramic" viewpoints when a free one gives the same picture. You also have coastline within reach of Cancún, so keep one morning free for a beach or a coastal walk.

The R-1 and R-2 buses run the Hotel Zone every few minutes for a flat fare. Use authorised airport taxis or ADO coaches — the ADO to Playa del Carmen takes an hour and costs a fraction of a transfer. As a rule: take the scheduled bus or train for the cheapest ride, an official taxi rank or a ride-hailing app when you land late or carry luggage, and never accept a lift from someone approaching you inside the terminal.

Day 1 — the historic core of Cancún on foot, clockwise from the main square, with lunch where you end up rather than walking back. Day 2 — the single biggest sight first thing, then the market and the residential streets around it, and a viewpoint at sunset. Day 3 — one excursion into Riviera Maya booked in advance, back for a late dinner. Group everything by walking distance and never cross Cancún twice in a day.

The classics are the same everywhere: unmetered taxis quoting a flat fare, "free" bracelets or flowers, distraction pickpocketing on crowded transport and at photo spots, card machines handed over pre-set to a higher amount or to your home currency, and restaurants without printed prices. Check the meter, always pay in local currency, and keep your bag in front of you in queues.

In Mexico (Quintana Roo), 10–15% in restaurants, 50–100 pesos a day for guides and dive crews, 20–50 pesos for bellhops. Breakfast until 11:00, lunch 14:00–16:00 and dinner from 19:30; beach kitchens close early, taquerías run late. Cover shoulders and knees inside churches, greet staff before ordering, keep your voice down in residential streets at night, and expect shops in smaller towns around Cancún to close in the early afternoon.

Most of what makes Cancún memorable costs nothing: walking the historic centre and its squares, the market hall, the outside of Museo Maya de Cancún & San Miguelito ruins, the churches that ask only for a donation, the parks and gardens, and the viewpoint that looks back over the roofs. Add the seafront promenade and the public beaches — free showers and no sunbed hire needed if you bring a towel. Municipal museums in Mexico (Quintana Roo) usually have one free afternoon or evening a week, and many cathedrals are free outside visiting hours if you go to pray rather than to tour — check the times at the door on your first morning.

ADO coaches link the whole coast cheaply; colectivos run Playa–Tulum all day; hire a car only for Bacalar, Valladolid and Chichén Itzá, and carry pesos for the toll road If your 3-day plan is mostly on foot in Cancún 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.

Keep two indoor blocks in reserve: the main museum or cathedral of Cancún, a market hall with food stalls, a long lunch, or a thermal bath or wine cellar in Riviera Maya. In extreme heat, invert the day — sights before 11:00, indoors from 14:00 to 18:00, and the evening back outside. December–April for dry, breezy days; May–June is hot and quiet. September–October is the peak of the hurricane season and the wettest stretch of the year.

Locals go where there's no ticket desk: the residential lanes just outside the walls of Cancún 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 Riviera Maya that question opens more doors than any list.