This year, in its 20th edition, Art Dubai opened a month late and in a scaled-down format after the regional conflict forced the organisers to revise their plans.

"When the conflict broke out, we were only a few weeks out from the fair, and so we had to make a decision as to whether to go ahead" with the three-day event, its executive director Benedetta Ghione, told AFP.

"For us, the message is about resilience," she added.

The organisers, who normally sell around 10,000 tickets, made admission free to attract visitors, and have so far received 16,000 registration requests on their website.

The United Arab Emirates was the main target of Iranian missile and drone attacks during the regional war sparked by US and Israeli strikes on the Islamic republic in late February.

The conflict has rocked the wealthy UAE, cutting off most oil exports and undercutting the safe-haven image that helped it become the region's financial hub.

A ceasefire was agreed last month, but regional tensions remain high, disrupting air and sea transport, and tourists are still few and far between.

Despite the climate of uncertainty, some international gallery owners made the trip to Dubai, including France's Frank Elbaz.

"Despite the situation, you can feel that things are bubbling here and that it's a place with a future," he said.

Based in Lebanon, which has also been dragged into war, gallerist Saleh Barakat also felt it was important to attend the fair out of solidarity.

"We are all here this year in order to be present and to say life goes on," he said.