I wouldn't go out of my way to go to the Love River, but if you're in Kaohsiung and looking for something to do, it might be worth a trip. My kids enjoyed riding on a river cruise. The cruise, for local residents, cost about $80nt per adult, or about $120nt for non residents. I think kids were $50nt. The cruise was about 15 min. and was pretty uneventful. I guess if you're 4 years-old it's pretty cool, but otherwise it's not too exciting. It's a nice place for a walk next to the river though, if it's not too hot.
There are a couple overpriced cafes with bad service and bad music located along the riverbank. It took them 25 minutes to bring us an ice tea and a beer.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.