http://www.facebook.com/media/set/?set= ... .739160733
This may be an interesting spot to stargaze. I may do some recce on my own and update this thread accordingly.
This sentence from the following article should trigger a "whoa" response from you

"The park is not lit at night to minimise disturbance to the sensitive wildlife at the park."
Source: http://www.nparks.gov.sg/cms/index.php? ... &Itemid=50
For those who are interested to check out the place, please take note there will be mosquitoes there. If the place is very dark at night, there may be a safety issue also. So try not to observe or recce the place at night alone.
Don't feed the monkeys and don't let them steal your valuable eyepieces in the dark.

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Tampines Eco Green official webpage from Nparks:
http://www.nparks.gov.sg/cms/index.php? ... &Itemid=75
Location: Tampines Eco Green, Tampines Avenue 9 and Tampines Avenue 12
Park Size: 36.5 ha
Getting There
- Bus Take Bus no. 293 from Tampines Bus Interchange and alight at bus stop near to Tampines North Primary School along Tampines Ave 9. Walk 15 mins to the park.
- Take bus no. 8 15 18 19 27 28 29 37 38 81 168 291 293 and alight at bus stop opposite to Tampines Regional Library. Walk 10 mins to the park via Sun Plaza Park.
- MRT Alight at Tampines MRT station and walk 20 mins to the park via Sun Plaza Park.
- Car Visitors can park at the nearby Tampines Housing Estate Block 408, 409, 412,413 and 414