MacRitchie Reservoir, Singapore

MacRitchie Reservoir is Singapore’s oldest reservoir, completed in the late 1860s and formally named after municipal engineer James MacRitchie in 1922. Nestled within the Central Catchment Nature Reserve, the reservoir is a cornerstone of Singapore’s early water supply system and today remains a celebrated green lung for residents and visitors. Its trails, boardwalks and the popular TreeTop Walk make it one of the island’s premier destinations for nature lovers, hikers and anybody seeking a tranquil escape from the city.

Quick Facts

Also known as: originally the Impounding Reservoir; later Thomson Road Reservoir.
Location: Central Catchment area, near Lornie Road and Upper Thomson Road.
Established: construction largely completed in 1867–1868; renamed MacRitchie Reservoir in 1922.
Key features: TreeTop Walk (250 m suspension bridge), extensive nature trails and boardwalks, reservoir vistas and kayaking opportunities.
Management: National Parks Board (NParks) and PUB (as part of Singapore’s catchment network).
Activities: hiking, trail running, birdwatching, kayaking (in permitted areas), photography and nature education.

Location and Setting

MacRitchie Reservoir sits in the heart of Singapore’s Central Catchment, a protected forest area that contains several of the island’s primary reservoirs. The reservoir’s catchment is largely forested, which helps protect water quality and provides habitat for native flora and fauna. Access points include car parks and trailheads off Lornie Road, Venus Drive and Thomson Road, and the reservoir is linked to the island-wide Park Connector Network (PCN) for cyclists and pedestrians.

History

The reservoir began life as the Impounding Reservoir, built to secure a more reliable water supply for a rapidly growing colonial town. Engineering works in the 1860s — including an earth embankment — created the impoundment, which was later renamed Thomson Road Reservoir in 1907 and then MacRitchie Reservoir in 1922 to honour James MacRitchie, who contributed to Singapore’s municipal engineering development. Over the decades the reservoir and surrounding woodlands served both strategic and recreational functions; the area also witnessed events during the Second World War when control of water resources was a critical consideration for both the defending and occupying forces.

Nature Trails and the TreeTop Walk

MacRitchie offers an extensive network of trails and boardwalks that wind through primary and secondary rainforest. NParks highlights a trail network of over 20 km within the Central Catchment area, with routes suitable for casual walkers and experienced trekkers alike. The most famous attraction is the TreeTop Walk — a free-standing suspension bridge about 250 metres long that links two of the reserve’s highest points and reaches heights of roughly 25 metres above the forest floor. The TreeTop Walk provides an unusual vantage point to observe forest canopy life and sweeping views over the reservoir, and it is a highlight for wildlife watchers and photographers.

Ecology and Wildlife

The reservoir and reserve support a surprisingly rich set of native species for a small island. The forest harbours primates (notably long-tailed macaques), monitor lizards, a range of birds (including kingfishers and herons), amphibians and assorted insect life. The relatively undisturbed riparian zones and mature trees provide critical habitat and ecological connectivity across the central catchment. Conservation and visitor-management measures by NParks help balance public access with habitat protection, including boardwalks to keep foot traffic off sensitive areas and interpretive signage to promote responsible behaviour.

Recreation and Activities

Visitors to MacRitchie can enjoy a variety of outdoor pursuits. Popular options include:

Hiking and Trail Running: Loop routes around the reservoir vary from moderate 3–5 km walks to more demanding 10–11 km treks that traverse undulating terrain.
TreeTop Walk: A walking experience across the canopy that is often scheduled and occasionally closed for safety or maintenance — check NParks advised hours and conditions before visiting.
Kayaking and Water Sports: Non-motorised boating has been offered at authorised locations on the reservoir; users should check with PUB/NParks for permitted areas and safety regulations.
Wildlife Viewing and Birdwatching: The sheltered forest and lakeside habitats are excellent for spotting birds and small mammals, especially in the early morning and late afternoon.
Photography and Nature Education: Educational signs and guided walks are available periodically, making MacRitchie a popular outdoor classroom for school groups and nature enthusiasts.

Water Resource Role

Although MacRitchie today is principally valued for its recreational and ecological roles, it remains part of Singapore’s broader water catchment system. The forested catchment helps supply relatively clean raw water to treatment works, contributing to local water security. Management practices focus on protecting source quality through catchment protection and minimising pollution from urban runoff.

Visitor Considerations and Safety

Because the reserve contains natural terrain, visitors should prepare appropriately: wear sturdy footwear, bring water, and use insect repellent. The trails can be slippery in wet weather and some routes are moderately challenging. The presence of long-tailed macaques requires caution — do not feed wildlife or leave food unattended. For safety and conservation reasons, certain boardwalk segments or the TreeTop Walk may be closed for maintenance or after severe weather; consult NParks’ official site or notices before planning a visit.

Conservation and Management

NParks, together with PUB and other agencies, oversees the conservation and public-use balance at MacRitchie. Management actions include trail maintenance, habitat restoration, visitor education, and monitoring of biodiversity. These efforts aim to preserve the forest’s ecological integrity while allowing people to connect with nature — a central goal of Singapore’s broader “City in Nature” strategy.

How to Get There

MacRitchie Reservoir is accessible by several routes. Road access is available from Lornie Road and Upper Thomson Road with car parks at designated lots. Public transport options include nearby MRT stations (such as Caldecott and Marymount on the Circle Line and Caldecott/Thomson-East Coast Line connections) with feeder buses and park connector links. Cyclists can use the Park Connector Network to reach reservoir access points safely.

MacRitchie Reservoir is on the Map of Reservoirs in Singapore

References

Page Details

This page was created on 5 October 2025. Hi, my name is Timothy and created it from my research, for my own entertainment, knowledge and to satisfy my curiosity. I am providing the information to you in good faith and hope it is useful. I try to get the details as accurate as possible. I also try to update the page whenever I stumble on new details. So this and all my other pages are perpetual work in progress. If you discover any error, please politely inform me, pointing out where the error lies, and I will correct it as soon as possible. Your helpfulness will keep this page accurate, relevant and helpful to those who need the information.

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