Industry leaders also expect more arrivals on Thursday, as well as higher spending from long-haul travellers.

Tourists say they plan to visit The Peak, hike MacLehose Trail and take junk boat trips in Sai Kung.

Hong Kong authorities estimate that as many as 1.54 million mainland visitors will cross the border during the eight-day holiday.

Industry leaders also expect more arrivals on Thursday, as well as higher spending from long-haul travellers.

With the extended break under way, records are being set for railway travel and popular tourist destinations are selling out days at a time.

Hotel industry veterans say focus on ensuring events end earlier at night to help with cross-border commutes has hit demand for extended stays.