The Blue Grotto is a string of sea caves on the south east coast of Malta near Wied iż-Żurrieq fishing harbour, famous for the blue light that floods their walls. You see it best by taking a short boat trip from the jetty, or by walking up to the free cliff‑top viewpoint.
Conditions make or break the colour. You want calm seas and sunshine, ideally in the morning, and you need to know that boats are cancelled when the sea is rough, with no advance notice. Online updates are not reliable, so the only sure way is to show up and see if skippers are running that day. Tour buses start arriving around 9:30–10:00, which is when queues build and parking starts to pinch.
There are seven sea caves. The Maltese name is Taħt il-Ħnejja. It sits opposite the uninhabited islet of Filfla, a bird sanctuary. Inside and along the cliff, seawater throws shades of blue onto the rock, and when the sun is high the surface can flash red, mauve, green, orange and yellow underwater as the boats nose into different openings. It is a popular tourist destination and a favourite spot for photography.
From the jetty at Wied iż-Żurrieq, small boats head out whenever the weather allows and take you in under the arches and into a couple of the caves. Boat trips run daily, year round, weather permitting. Boat trips typically last 15–25 minutes. The boats are traditional Maltese luzzus. Boats take 8–9 passengers, life jackets are provided, and on board commentary is in English only and explanations are limited. Tickets are cash only. Tickets are sold on site. There is an ATM at the bar before the descent to the jetty. Parking fills quickly. Fines are issued for illegal parking.
If the sea is flat, the experience is gentle, colourful and very photogenic. If there is a swell, skippers do not go in, and even in light chop the ride can be bumpy, so seasick travellers are better off at the viewpoint. Swimming and snorkelling are suitable at the jetty, away from boat traffic.
When is it open? There is no formal season, just the weather. Boats are cancelled when the sea is rough, with no advance notice. The most reliable light is in the morning on a clear day, and arriving before the first tour buses gives you the best chance of getting straight on a boat.
What to bring and wear
- Water and a hat for the queue on sunny days
- Grippy sandals or trainers for wet steps around the jetty
- Swimwear and a towel if you plan to use the jetty
- A dry bag for phones and cameras
- Cash for tickets
Where to eat nearby Plan your meal in Wied iż-Żurrieq, the nearest place to the jetty, or bring snacks if you expect to wait.
What else is nearby Ħaġar Qim is five minutes away, so the usual plan is caves first, temples after. If you dive, the scuttled Um El Faroud wreck lies just up the coast from Wied iż-Żurrieq, and the cliffs here are also used for rock climbing. For other blue‑water days, swap islands and try the Blue Lagoon, Comino or Crystal Lagoon. If you want a wilder swim with fewer people, look at Fomm ir-Riħ.
What people get wrong Many expect a single cathedral‑like cavern you can swim into under your own steam. In reality it is a short guided boat run that weaves past arches and into a couple of small caves, and swimming is kept to the jetty because of the boat traffic. Others plan around a timetable they saw online, then find the sea has picked up and everything has stopped. Take the hint from locals and treat it as a fair‑weather extra, not a fixed appointment.
Common questions Q: How do I get the classic view from above? A: The viewpoint is called the Blue Wall and Grotto Viewpoint. The viewpoint is free.
Q: Can I swim there? A: Swimming and snorkelling are suitable at the jetty, away from boat traffic.
Q: How long and how much is the boat? A: Boat trips typically last 15–25 minutes and cost €10. Tickets are cash only and sold on site.
Q: Will it be running today? A: Boats are cancelled when the sea is rough, with no advance notice, and online updates are not reliable.
Q: What language is the commentary? A: On board commentary is in English only and explanations are limited.
What is actually bookable here
- 1 bookable option via Tiqets
- about €30 per person at the time of checking
- Rated 3.4/5 on average by travellers on the partner sites, across the 1 that carry ratings. Those are low scores, so read the reviews on the operator's page before you book.
Taken from the operators' own listings, checked 15 September 2026. Ratings are theirs, not ours, and we do not host reviews.
Last checked: 19 September 2026. Prices, opening hours and timetables change, verify anything time-sensitive before you travel. Photo: Wittylama, CC BY-SA 4.0.
