I've got a story from my own brother. We used to live at Elias road, right beside sungei api-api, across Riverina (a group of landed properties). Yes, the infamous Sungei Api-Api. So this lovely pandai sangat (too smart) brother of mine decided to walk ALONE to pasir ris park to meet his friends, around 9+pm.
He was quite skeptical of it initially but remembered my other brother taking the same route so he called to confirm it was safe and ok. From Elias road, you can take 2 routes, one pathway along the sungei and along Riverina, and another path on the other side of the river, along the forest. He took the latter. The pathway is about 4m wide, partially covered with dried leaves but quite well lit: a lamp post every 10m or so. Takes about 15mins to reach pasir ris park where they have the ponies and horses' stables.
He wasn't thinking of anything so walked at a normal pace, looking at the pavement. About 1/3 way through, when he looked up, SURPRISE!!! Our dear kakak hovering above the pavement, one lamp post away from him. No feet, dressed in white, long unkempt hair, face blurred. In a split second, he thought of 1) just freaking walk on and ignore 2) turn around and run for his life. So he took number 2. He said he held on to his cap with one hand and raaaaaaaaaaaaaaaan the opposite direction, towards the nearest road/bus stop. And that wasn't it. When he was running, this kakak was so happy that she LAUGHED- the creepy laugh that echoes. He asked me if i heard anything from home, i said no. He said it was super loud and echoey.
Ever since then, he started seing more kakaks along the sungei, on the way home at night but just ignored them and walked further away. I told him "you're too cute. they wanna be your best friends"