I have never thought to boil cucumber soup until my mum taught me to, just recently. It boils the same way as old cucumber soup, just minus the old cucumber and dried cuttlefish.
Cucumber is known to be a cooling vegetable but once you add meat with it (in this case, the soup), it becomes soothing and nourishing (yun).
Pork ribs or pork bones
2 cucumbers, deskinned and deseeded
a handful of goji seeds (gei ji)
a handful of red dates
a few pieces of yuk chuk (Solomon's Seal Rhizome)
salt to taste
Optional: 1-2 pieces of dried oyster
Boil for 3 hours and wala!