the route alongside the airport is about 8km. if you came from
Macdonald ECP, all in about 13-15km.
http://www.nparks.gov.sg/park_connectors_18.asp
u jus need more practice and build up your staminas. Ah Pek here
used to cycle round SG every Friday night - 110km starting
12midnight and finishing 6am and only because we eat drink and tok
kot along the way.
we cycled from Causeway to Desaru and back by ferry to Changi
Village from 12midnight to 8am cos there was no eating and
drinking. that journey was about 180km long :P

wah.. damn long.. it'll make a hellish ride