They said people would make a million trips in and out of the city on May 1 alone.
The city was predicted to see 5.9 million arrivals and departures over the week, with at least 800,000 mainland visitors expected to visit Hong Kong, city leader John Lee Ka-chiu said earlier.
A 10-minute fireworks display on May 1 at 8pm over Victoria Harbour will be a highlight to kick off the golden week.
The show will create patterns such as smiley faces and the letters “HK”, shooting up to 100 metres (328 feet) into the night sky.
The event was timed to coincide with a shopping festival organised by the Yau Tsim Mong District Office and council, which will feature limited discounts offered by 2,200 businesses across malls, hotels and restaurants in Tsim Sha Tsui and Mong Kok.
The Avenue of Stars along the harborfront, large shopping malls, and an abundance of restaurants and pubs are just a few of the prominent tourist attractions found in Tsim Sha Tsui.
Tourism sector lawmaker Perry Yiu Pak-leung said the fireworks would be a spectacular welcome gesture to tourists and boost excitement, but that they were unlikely to be “a key attraction” on their own.
“Hopefully the [Yau Tsim Mong] shopping festival can attract more people and boost consumption,” he said.
Yiu added that there should be more synergy between the fireworks and the line-up of shopping perks.
Simon Wong Ka-wo, the president of the Hong Kong Federation of Restaurants and Related Trades, agreed that activities planned by the tourism authorities could help heat up the atmosphere.
Hong Kong gearing up for 800,000 mainland visitors over ‘golden week’ holiday
But he questioned what benefits there would be for “districts other than Yau Tsim Mong?”
“What the Tourism Board is doing now focuses on both sides of the Victoria Harbour and Yau Tsim Mong, but it seems there isn’t much effort being done in other districts,” Wong said.
He added that business in the restaurant industry would see a 10 per cent increase over the holiday compared with non-peak periods.
But Wong warned that takings might suffer a slight drop when compared with the Labour Day holiday last year, partly due to a trend among Hongkongers to head to the mainland for shopping.
He said as tourists increasingly looked for in-depth travel experiences, authorities should do more to promote the unique features and culture of different districts of the city.
Timothy Chui Ting-pong, the executive director of the Hong Kong Tourism Association, said shopping discount offers would be a “highlight” over the five-day holiday.
He added he was hopeful the offers would lead to more spending in the city.
The Tourism Board joined forces with online travel agents on the mainland to promote immersive green tourism, Hong Kong’s nightlife and engage in “city walks”, a trending way of getting about popular with young mainlanders.
Media organisations and content creators from Xian in Shaanxi province and Qingdao in Shandong province were also invited to tour Hong Kong to promote the city on social media.
Residents from the two mainland cities are allowed to apply to an expanded solo traveller scheme to visit Hong Kong
Hong Kong tourism sector hoping for 30% bump in visitors over ‘golden week’
The Individual Visit Scheme already covered 49 mainland cities, including many first-tier ones such as Beijing, Shanghai, Chengdu and Chongqing.
The scheme allows residents of eligible cities to visit Hong Kong on their own rather than with tour groups.
The board also distributed 16,000 coupons for discounts worth HK$200 (US$25.50) to visitors from Xian and Qingdao through travel agents and airlines.
During a press briefing on Thursday, boundary division commander Ng Hoi-ka said the Immigration Department had deployed about 200 extra frontline staff to cover the travel period and would cooperate with authorities to extend checkpoint operating hours if needed.
The Lo Wu checkpoint was expected to be the busiest land crossing, handling a predicted average of 200,000 travellers daily during the holiday, Ng said.
The Lok Ma Chau Spur Line is expected to handle 170,000 travellers a day and the Hong Kong-Zhuhai-Macau Bridge will deal with an estimated 130,000.
The number of city cars travelling on the bridge has tripled since authorities allowed Hong Kong private vehicles to travel to the mainland from last July.
As many as 12,000 cars travel through the checkpoint on most weekends.
Ng said authorities expected an increase in volume over the golden week break.