Tanjong Chek Jawa (or Tanjung Chek Jawa or simply Chek Jawa) is a cape and the name of its 100-hectare wetlands located on the south-eastern tip of Pulau Ubin, an island off the north-eastern coast of the main island of Singapore. Chek Jawa is among the last few places left with a natural rocky shore.
The wetlands are unique as several ecosystems can be observed in one area – sandy beach, rocky beach, seagrass lagoon, coral rubble, mangroves and coastal forest. The site forms part of the Ubin–Khatib Important Bird Area (IBA), identified as such by BirdLife International because it supports significant numbers of visiting and resident birds, some of which are threatened.
In December 2001, the government called off reclamation plans of the Chek Jawa area after a biodiversity survey conducted by conservationist volunteers. State use of the land will be deferred for the next 10 years. However, Chek Jawa may still be re-used by the government in and after 2012.
Previously a virtual unknown, Chek Jawa came into national prominence and focus only since the early 2000s when the area's rich biodiversity was discovered almost by chance during a nature outing at low tide. News on the impending land reclamation works planned by the government on the area sparked a rare show of public-led and coordinated effort to reverse the reclamation plans. A group of volunteers, headed by botanist Joseph Lai (who first discovered Chek Jawa's rich ecosystems in December 2000), conducted a biodiversity survey months before the area was to be reclaimed in 2001. This survey was captured on the documentary Remember Chek Jawa by Eric Lin Youwei. The volunteers then submitted a report and petitioned to the government for the preservation of the natural habitat.
The Singapore Government, in turn, surprised many when they acceded to these requests in December 2001. They agreed to leave the Chek Jawa area untouched for the next ten years. The area has been fenced off due to an increase of tourists into the area, damaging the ecosystem in the area. Conservation efforts were made by the Ministry of National Development to preserve the area.
In 2001, the National Parks Board (NParks) took over Chek Jawa's management. NParks conducts free guided tours of Chek Jawa a few times each month during low spring tide periods, and about 20,000 visitors have gone on its tours from 2002 to 2007.
In early 2007, Chek Jawa was closed to the public after being damaged by heavy rains in December 2006. Freshwater rains upset the wetlands' saltwater balance, resulting in the widespread death of marine creatures such as sea anemones, seastars, sponges. Tours conducted by NParks were stopped in March 2007 to let the wetlands recover.
On 8 July 2007, the nature preserve was re-opened to the public. Visitors going to Chek Jawa no longer need to join the free guided tours conducted by NParks. These are conducted only a few times each month during low spring tide periods.
The Singapore Government added new amenities with a visitor management plan for Chek Jawa, at a cost of S$7 million. These included a 1.1-kilometre boardwalk, a 20-metre tall viewing tower and a visitor centre with a viewing jetty.
The new boardwalk running along the coast and into the mangrove area allows visitors to get up close to plant and marine life such as fiddler crabs and monitor lizards, without damaging the area. Special care was taken to construct the boardwalk, which is made from concrete but simulated to resemble timber. This is more environmentally friendly as it cuts down on the use of wood while still retaining its natural feel.
At the visitor centre, which was converted from a Tudor-style house built in the 1930s, visitors can learn more about Chek Jawa's wildlife.
 Chek Jawa is made up of 7 interdependent ecosystems – namely, its coastal forest, mangrove forest, its rocky shore, the sandy shore, sand bar, seagrass lagoon and the coral rubble. Within each of the ecosystems, there is an abundance of natural creatures, rare plants, local and migratory birds. These have attracted photographers, nature lovers, student groups and others to visit Chek Jawa.
The National Parks Board, National Biodiversity Centre, TeamSeagrass and volunteers from the public regularly conduct surveys and monitoring of the seagrasses found in Singapore, in inter-tidal areas such as Chek Jawa and Pulau Semakau. The seagrass lagoons at Chek Jawa is one of the monitoring sites. These surveys are part of Seagrass-Watch, a global seagrass assessment and monitoring programme spanning 18 countries with more than 200 monitoring sites worldwide. Non-destructive scientific surveying methods developed by Seagrass-Watch are adopted. Data gathered is then fed back to Seagrass-Watch Headquarters, which then analyses the trends and condition of seagrass habitats at the local, regional and global scale.
Survey on Intertidal Sponges
The National Parks Board, National Biodiversity Centre and the Tropical Marine Science Institute jointly launched a collaborative project to survey and identify the intertidal sponges around Singapore. The inter-tidal area of Chek Jawa is one of the 24 locations. Although sponges are commonly found on our shores, they are poorly known due to the limited studies conducted.
The 1-year study yielded a total of 102 species of intertidal sponges. One species new to science, Suberites diversicolor, was described and a large number of 40 species of intertidal sponges were recorded for the first time in Singapore.
Notes and references
- Tay Suan Chiang (8 July 2007). "Chek Jawa's back". The Sunday Times.
- "Ubin–Khatib". Important Bird Areas factsheet. BirdLife International. 2014. Retrieved 18 March 2014.
- Tan, Ria and Yeo, Alan, in association with The Raffles Museum of Biodiversity Research, The National University of Singapore (2003) Chek Jawa guidebook Singapore: Simply Green ISBN 981-04-8832-7
- Chua, Ee Kiam (2002) Chek Jawa: discovering Singapore's biodiversity Singapore : Simply Green ISBN 981-04-6814-8
- The Saga of Tanjong Chek Jawa
- Chek Jawa by National Parks
- Chek Jawa by NUS
- Chek Jawa by WildSingapore
- Satellite image of Tanjung Chek Jawa – Google Maps
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