The "Li" in Li's Field refers to local business tycoon Li Ka-shing, the implied developer of the field. The basis of Li's Field rests on the way Hong Kong's government is organized. The city's Commerce and Economic Development Bureau oversees the Hong Kong Observatory, and that has led to speculations the Observatory bases its issuance of tropical cyclone warning signals on economic reasoning, instead of scientific reasoning.
In Hong Kong, schools above kindergarten level are shut down when Tropical Cyclone Signal Number 8 is issued (kindergarten classes are suspended when Signal Number 3 is issued), and all non-essential staff at a workplace are sent home. Some believe businesses have pressured the Observatory into avoiding the issuance of Typhoon Signal Number 8, in an effort to avoid economic losses.
Base on this phenomenon, some HKGolden members create a song "Li's Field is good (力場無限好)" to "sing the praises" of Li Ka-shing and his Li's Field. Please enjoy the song when solving the puzzle.
力場無限好 Li's Field is good
多經典的風后 一霎眼已走
纏綿著廣東的山丘 福建那裡走
作勢嚇怕宇宙 震撼永久
李氏力場還是未惡夠 如像噩咒
多好玩的三仔 只掛800咪
連同特區這好兄弟 呃到你冇計
愛李愛到一個地步 落命令收制
枉當初呼呼作勢 最勁的風帝 最後化爛泥
力場無限好 Wow Wow Wow 打風已黃昏 Ha Ha Ha
本想放日假 李氏卻說絕不肯
即使那頭近 卻又要繼續搵銀!
力場無限好 Wow Wow Wow 我地被人昆
打風的快感 轉向不幸
聽朝波士不肯等人 你要盡快訓
等塞車返港島 等到叫老母
長存在海底的通道 收費要細數
每秒每晚彷似大盜 偷走的積蓄一天天變無
新樓啲則好 想供供不到
力場無限好 Wow Wow Wow 打風已黃昏 Ha Ha Ha
返工最實際 繼續博殺度一生
只想放日假 卻令你我極傷感
力場無限好 繼續被人昆
打風必無梗 永遠搵笨
商家努力支撐港人 放假未答允
ParknShop多的是 加價平常事
然而廿蚊買到的 永遠不相似
You would get four numbers, A, B, C, D, from smallest to largest, in the puzzle.
F = A - 33
G = B / 3
H = C x 3
J = D + 333
The final coordinate is N 22 G.H E 114 F.J.
You can check your answers for this puzzle on GeoChecker.com.
Why so many 3s? The below picture gives the answer.

The difficulty is for the puzzle. The cache itself is easy, D=1-2 only.