(Reuters) - Royal Caribbean boosted its annual profit forecast on Tuesday for the fourth time this year, driven by high demand for private destinations and cooler travel spots, as well as multiple ticket price hikes.

A post-pandemic surge in cruise demand is still going strong and customers are splurging on cruise activities, boosting growth at operators including Royal Caribbean, Norwegian Cruise and Carnival Cruise .

However, Royal Caribbean, which owns the world's largest cruise ship, warned that it expects a hit to fourth-quarter profit from Hurricane Milton, which wreaked havoc in the Atlantic region, forcing the company to adjust itineraries.

It forecast fourth-quarter adjusted profit per share between $1.40 and $1.45. Analysts were expecting a profit of $1.58 per share, according to data compiled by LSEG.

Shares of the company, which have risen 57% so far this year, were down 2% in premarket trading.

Royal Caribbean's third-quarter total revenue rose nearly 18% to $4.89 billion, slightly missing an estimate of $4.90 billion.

Hotter-than-usual weather is also encouraging more people to book cruises at an earlier date for summer next year, especially to much cooler destinations such as Alaska, Utah, Minnesota and Iceland.

Major cruise operators are also investing millions of dollars into their own private destinations, packed with excursions, beaches, bars and restaurants, helping attract customers looking for amusement park-like vacations while on a cruise.

Royal Caribbean said demand for 2025 was strong, with booked load factors in line with prior years and at higher rates, allowing for further price hikes as 2025 bookings ramp up.

It expects annual adjusted earnings per share of $11.57 to $11.62, compared with its earlier expectation of per share profit between $11.35 and $11.45.

The company posted third-quarter adjusted earnings per share of $5.20, compared with analysts' estimate of $5.03 per share.