The Tayside Campaign for Nuclear Disarmament staged its annual Walk Up The Law to commemorate the bombing of Hiroshima and Nagasaki.
Tuesday was the 68th anniversary of the US dropping an atomic bomb on the Japanese city to end the Second World War. Three days later a second bomb was dropped on Nagasaki.
Tayside CND said by 1950 more than 340,000 people had died as a result of the bombings but today the UK plans to replace its nuclear weapons, which are many times more powerful than the first A-bombs.
Member Edith Constable said supporters have been participating in the walk up the landmark for 32 years and many have been campaigning for nuclear disarmament since the 1960s.