I have been to quite a few river cruises in search of fireflies before. While in Terengganu recently, it was also one of the activities we indulged in. Cruising through Sungai Chukai (Chukai River) / Sungai Yak Yah (Yak Yah River), I would say that I was more impressed by the fireflies colonies of Perak’s Kuala Sepetang.
Sg Sepetang fireflies, Kuala Sepetang, Taiping Perak