Number 88 symbolizes fortune and good luck in Chinese culture, since the word 8 sounds similar to the word fā (發, which implies 發財, or wealth, in Mandarin or Cantonese). The number 8 is considered to be the luckiest number in Chinese culture, and prices in Chinese supermarkets often contain many 8s. The shape of the Chinese character for 8 (八) implies that a person will have a great, wide future as the character starts narrow and gets wider toward the bottom. The Chinese government has been auctioning auto license plates containing many 8s for tens of thousands of dollars. The 2008 Beijing Olympics opened at 8 p.m., 8 August 2008.
In addition, 88 is also used to mean "bye bye (拜拜)" in Chinese-language chats, text messages, SMSs and IMs. 88 can be seen as shorthand for 8181, which when pronounced in standard Mandarin is almost identical to "bye bye".
Source: https://en.wikipedia.org/wiki/88_(number)
The Challenge
Find 88 geocaches in Hong Kong.
The Cache (see ‘Final Location’)
The Braemar Hill hike takes you up to one of the best viewing platforms to watch the sunset over Hong Kong. It has a few names and this hike is often also referred to as, Hung Heung Lo Fung or the Red Incense Burner Summit. The hike itself is very short with an option to hike 3km in total or you can even reach the summit with just a 5-minute walk from the nearest bus stop!
Source: https://www.journeyera.com/braemar-hill-hong-kong-sunset-hike/