Two places in Temuka,
(where I grew up) was Halls Creek and down by the old wool scour off Domain Ave.
We used to go there at night and spotlight them back in the mid-80’s, good bait for sharks and if you put a bit of aniseed oil on them, you got some pretty decent trout in the river.
This was of course before the rivers were turned to shit by Industry.
For Christ sakes, don’t eat eels, only use them as bait, there was a guy here that tried to smoke an eel he caught, it made him pretty crook.