Speaking of boats or ships, I read that HK once had a thriving boat and shipbuilding industry. I definitely don't remember this of course, but it is nevertheless an interesting historical gem.
Yes, it is a little known fact, but Hong Kong once had a world-beating ship manufacturing industry. Most people associate Hong Kong in the past of only cheap and low-end light industrial products, but that is not true when it came to maritime stuff. Whompoa Dockyard (where Whompoa Garden is today at Hung Hom) and Taikoo Dockyard (at what is now Taikoo Shing of course) built many ships, including the Star Ferries. Here is a historical pre-WW2 photo of Taikoo Dockyard:
Even today, there are remnants of this once thriving industy at Tsing Yi, where Hong Kong United Dockyard is located, the successor company of both Whompoa and Taikoo, conduct ship maintenance, repair and salvage work.
And not just ships, but HK also built recreational sailing and motor yachts too. Grand Bank Yachts, a famous luxurious yacht builder, was founded in Hong Kong in the 1950's. Its no longer based here, but it did began here. Here is one example of their yachts:
Another is Cheoy Lee Shipyards. It builds all kind of boat and ships, and until 1998, still built vessels in Hong Kong. Their head office is still based here but their shipyard moved to Zhuhai. Here is an example of a luxury yacht they built: