Human waste, fires and litter
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Scottish Water has issued a warning following several incidents of anti-social behaviour at its reservoirs.
Forecasts of fine weather this weekend are expected to attract higher than normal numbers of people to the sites.
Scottish Water is concerned about further vandalism to property, damage to trees and fires being lit and left unattended.
It says littering has also been an increasing issue, with food, drink, tents and human waste left discarded.
There have also been reports of swimming, as well as jumping and diving from water towers which are part of the working infrastructure of the reservoirs.
Peter Farrer, Scottish Water's chief operating officer, said: "We are seeing a significant increase in the number of people visiting reservoirs.
"I understand the desire to get out and about, especially with the restrictions which have been in place.
"However, the behaviour we have seen from a sizeable minority of people is unacceptable.
"There are many hidden dangers in reservoirs as they are working assets and vital to our water supply network.
"Add to that, the fact that cold water shock could easily result in someone getting into real difficulty.
"You’re welcome to visit but please behave appropriately.
"Respect the environment and take your litter and other items away."
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