No need. ..

Go book Naked Hermit Crab (http://nakedhermitcrabs.blogspot.com/)free-walking session. This free-walking is two hours+ and does not include walking on the mud-banks.

Ideally, we should visit during low-tide, nevertheless there are a lot of attractions (even horNbills !)

Do take note :
- cycling is recommed for thoe with confidence, too many slopes for kids
- mosquito near the tower are very fierce. Small but potent, and show no fear of repellant (wear long sleeve shirt for kids)
- drink lots of water
- you can diy tour but might miss out some interesting "corners"

Look at out blog to see how much fun three families enjoyed last week !
http://sengkangbabies.blogspot.com/2012/03/visit-to-chek-jawa.html

Would rate Chek Jawa 8.5/10 for sheer Fun and exploration.

Bought a deal via grouping and went to celestial ...OMG we had a not so nice experience man! They messed up our booking and we had to wait very long before we were served. And when it was Finally our turn, they said we don't have any booking...aiyoh very ma fan...was trying to relax end up super kancheong...anyways not much choices on pilau ubin so shrugs