Places of interest within the town include Ellon Castle Gardens, a historic garden complex restored by volunteers and open to the public. The gardens contain a collection of ancient English yew trees thought to be at least 500 years old, along with the ruins of the old
Ellon Castle. Ellon also has
Auld Brig, the Old Bridge of Ellon, a Category A listed bridge across the River Ythan, built in 1793 and no longer carrying vehicular traffic. The Riverside Park offers walkways alongside the Ythan, from which herons, salmon, trout and otters may be observed. In 2013,
BrewDog built a brewery at a cost of £7.8 million in a greenfield site just outside of Ellon. The brewery is designed to minimise
carbon emissions with the use of treatment plants,
biogas technology and since 2021, an
anerobic digestion plant. In 2016, the brewery was expanded at a cost of £5 million including the addition of a new 300-hectolitre (hL) brew house. The ruins of the
Kinmuck Castle are located about north-east of Ellon. That castle was dismantled in 1413 to build the old Ellon Castle. == Education ==