Parakrama Samudra (Sea of Parakrama)
A huge medieval reservoir expanded by Parakramabahu I in the 12th century and still used for irrigation. Come for the sunset and the bund, not for a monument.
Sources
What Parakrama Samudra actually is
Parakrama Samudra, the “Sea of Parakrama”, is a large reservoir beside the ancient city of Polonnaruwa. King Parakramabahu I (reigned 1153–1186) expanded it into a single vast water body, famously with the principle that no rain should flow to the sea unused. It was not built from scratch: the northern part, the Topa wewa, is dated to around AD 386.
It is really a linked set of tanks in three main sections: Topa wewa in the north, Eramudu wewa in the middle and Dumbutula wewa in the south. Sources give the surface as roughly 22 to 24 square kilometres and the bund as around 12 to 14 kilometres long. At low water the sections are connected only by narrow channels.
The reservoir is still in use. A 2021 press report describes water being released from it for Yala-season cultivation, and one guide says it supports over 18,000 acres of paddy. Think of it as a working lake with a medieval origin, not a ruin.
Worth your attention
The bund
The long earth embankment along the lake’s edge is the place to walk or cycle and watch the light go. Sources disagree on its exact length, from about 12 to 14 kilometres.
The three sections
Topa wewa, Eramudu wewa and Dumbutula wewa. At low water they look like separate lakes joined by channels.
The scale
“Samudra” means ocean. Standing on the bund with no far shore in view, the name makes sense.
The statue to the south
A statue usually identified as Parakramabahu stands on the southern side of the site. One guide reports free entry.
Before you go
Do this
- Go in the last hour or two before sunset, when the heat has dropped and the bund is pleasant to walk.
- Combine it with the end of your Polonnaruwa circuit rather than making a separate trip.
- Cycle along the bund if you have a bicycle; it is flat and open.
- Bring a hat and water; the bund is open ground with little shade.
- Check water levels first: in a dry spell the sections look like separate pools.
Know this first
- There is no single set of dimensions: surface area, bund length and capacity differ between sources.
- It is a working reservoir, not a protected monument, so there is little signage or interpretation.
- The Topa wewa is older than Parakramabahu; calling the whole lake a 12th-century construction is a simplification.
- Treat it as a working irrigation tank rather than a swimming or boating spot, and follow any local signs.
Getting to Parakrama Samudra (Sea of Parakrama)
Most people see Parakrama Samudra (Sea of Parakrama) as part of a stay around Polonnaruwa. Our Polonnaruwa guide covers where to stay, how long to give it and what else is nearby.
Coming straight from the airport, the relevant run is Colombo Airport to Polonnaruwa — fixed price per vehicle, driver waiting inside arrivals with a name board.
Read the full Polonnaruwa guideFrom Colombo Airport
Car up to 3 passengers; vans quoted on the route page. No night surcharge.
Parakrama Samudra (Sea of Parakrama) — frequently asked
What is Parakrama Samudra?
A large medieval reservoir at Polonnaruwa, expanded by Parakramabahu I in the 12th century from earlier tanks. It is made of three main connected sections.
How big is it?
Sources differ. The surface is quoted at roughly 22 to 24 square kilometres, and the bund at about 12 to 14 kilometres long.
Is it still used?
Yes. It has been used for irrigation since the 12th century, and a 2021 press report records water released from it for Yala cultivation.
Do I need a ticket?
The Polonnaruwa ruins ticket covers the sacred areas. We could not confirm whether anything is charged for the lake itself, so ask your driver or check at the site.
Also worth stopping for around Polonnaruwa
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