"CGW Cyclethon - NParks' first-ever mountain bike event." By N. Sivasothi. Habitatnews, 12 Nov 2005.
A 19+km route took cyclists along the northern edge of the Central Catchment Nature Reserve, without infringing core areas of the reserve yet keeping cyclists safe from heavy vehicular traffic.
Part of the route included a new trail created by National Parks Board between Upper Peirce Reservoir Park and Upper Thomson Road on scrubland adjacent to Upper Thomson Road.