From a Niagara Parks Commission press release seen at Niagara at Large (from September 18):

In a ceremony held today, The Niagara Parks Commission was pleased to rededicate the awe-inspiring amphitheatre, Oakes Garden Theatre, in celebration of the venue’s 80th anniversary.

Oakes Garden Theatre and its associated Rainbow Gardens are outstanding examples of design and architecture created to specifically act as a dramatic gateway to Canada. Influenced by the City Beautiful architectural movement of the mid-20th century, the venue was first opened to the public with an original dedication ceremony held on September 18, 1937.