Need a good South-Western route

Anyone has a good South-Western route near NUS to recommend? Roughly about 25-30km.
Its for a casual ride with a friend who has a MTB.

woodlands - kranji - neo tiew - lim chu kang - jalan bahar - jalan boon lay - jalan buroh - west coast highway

south buona vista road (good long steady climb) - north buona vista - dover - clementi -NUS.

Our Sun route.....

Bro Kenny want 25~30km only... this route more than that nia... Btw bro, where's ur start/end point..???

Total about 18km
Pasir Panjang Rd
1. Head southeast on Pasir Panjang Rd toward Science Park Rd 1.1 km
2. Slight right to stay on Pasir Panjang Rd 0.9 km
3. Turn left toward S Buona Vista Rd 17 m
4. Turn left at S Buona Vista Rd 1.1 km
3.2 km – about 6 mins
S Buona Vista Rd
5. Head southwest on S Buona Vista Rd toward Stockport Rd 2.5 km
2.5 km – about 4 mins
N Buona Vista Rd
6. Head northeast on N Buona Vista Rd toward Rochester Park 1.2 km
7. Slight left at Holland Rd 39 m
8. Turn left to stay on Holland Rd 0.7 km
1.9 km – about 3 mins
Holland Rd
9. Head northwest on Holland Rd toward Sixth Ave 90 m
10. Take the 1st right onto Sixth Ave 1.7 km
1.8 km – about 2 mins
Sixth Ave
11. Head northeast on Sixth Ave toward Anamalai Ave 0.1 km
12. Slight left at Bukit Timah Rd 33 m
13. Turn left to stay on Bukit Timah Rd 1.8 km
2.0 km – about 2 mins
Bukit Timah Rd
14. Head west on Bukit Timah Rd 70 m
15. Take the ramp to Clementi Rd 0.3 km
16. Slight left at Clementi Rd 3.3 km
3.7 km – about 4 mins
Clementi Rd
17. Head south on Clementi Rd 1.3 km
1.3 km – about 2 mins
Clementi Rd
18. Head south on Clementi Rd toward Kent Ridge Crescent 0.5 km
19. Turn left at Pasir Panjang Rd
Destination will be on the right 0.5 km
1.0 km – about 1 min

Start and end point is preferably clementi or nus area.

Thanks Uncle Yang. Looks good.