Dataran Merderka: Dratini and Charmander nests
Plaza alam sentral, Shah Alam: Squirtle nest
Central park, 1 Utama: Gastly nest
Taman Tasik Titiwangsa: Dratini and magikarp nests
Extreme park: Electabuzz nest
KLCC park: magnemite nest
Taman Tasik Shah Alam: Machop nest

do update this list! Thanks.
Criteria to be called a nest: at least 1 spawn every hour

Thanks! More specific location?

Ok will update the list! Thanks for the suggestion. It will be more helpful if I could put a pin on google map and upload here but i have yet to figure out how to do that.

Snorlax and rare spawns such as dragonite are random spawns that should not be considered as nests.

Anyway i hope the thread starter can pin the list so it's easy for everyone's reference

Dataran Merdeka: Dratini(along the river and construction sites; sometimes pokestop lures) and Charmander(field) nests
Plaza alam sentral, Shah Alam: Squirtle(around the mamak and mall entrance and dataran shah alam) nest
Central park, 1 Utama: Gastly(near the 1Utama mall end) nest
Taman Tasik Titiwangsa: Dratini(near the playground by the lake) and magikarp nests
Extreme park: Electabuzz(BurgerKing and KFC ) nest
KLCC park: magnemite(along the convention centre) nest
Taman Tasik Shah Alam(between the two pokestops: Machop nest

do update this list! Thanks. This list has been personally verified along with a cohort of friends.

Criteria to be called a nest: at least 1 spawn every hour