Large parts of the tourist attraction are under water and a decision has been taken to close the access for public vehicles and the car parks.
Kelpies Tours were cancelled on Monday, while the visitor centre remains closed until further notice.
People who are still hoping to visit the parkland are urged to use the car park at Falkirk Stadium.
At present there is no confirmation what has caused the flooding issue although Scottish Water is investigating suggesting it may be linked to a burst drain.
A joint statement from Falkirk Council and Scottish Canals released on Monday evening said: "The Helix remains closed to all vehicles due to ongoing flooding, and our visitor centre will close at 5pm today.
"We are continuing to work closely with Scottish Water to identify and resolve the cause of the flooding.
"The safety of our visitors and staff remains our top priority. Depending on conditions, the visitor centre may also remain closed tomorrow.
"We apologise for any inconvenience and appreciate your patience and understanding. Please continue to check the Helix Park Falkirk for the latest updates."
1. Helix flooding
Water is coming up through drains and a large area at the Kelpies is flooded with the water level continuing to rise on Monday evening. Photo: Michael Gillen
2. Helix flooding
It may be a water-based tourist attraction but this is a bit more than expected. Photo: Michael Gillen
3. Helix flooding
Looks like Duke and Baron are not impressed by all the additional water in the park. Photo: Michael Gillen
4. Helix flooding
Vehicle access has been closed as large areas are under water. Photo: Michael Gillen