The thief also threw a robotic lawnmower into the lake.
It happened overnight on Monday. Anyone with information about the incident can call police on 101.
Charity tin stolen from Alnwick Garden
An intruder entered a secure area of The Alnwick Garden and stole a charity collection tin, with £5 inside.
By The Newsroom
Thursday, 25th August 2016, 11:02 am
Updated Thursday, 25th August 2016, 12:04 pm