CN Tower restricts views in Toronto on 20 October

The CN Tower in Toronto will restrict its main viewing level on 20 October, while a biennial light installation continues at the landmark.

CN Tower (Tour CN) in Toronto will restrict access to part of its Main Observation Level on 20 October 2026, when the tower also closes earlier than usual. The change comes while the landmark remains a featured venue for the Toronto Biennial of Art, whose light installation continues through 20 December 2026.

CN Tower limits its main viewing level on 20 October

The operator has announced that a portion of the Main Observation Level will be unavailable from 3pm until closing on Tuesday, 20 October 2026. The tower will close fully at 10pm, and the last entry will be at 8.30pm.

The restriction does not apply to every visitor area. The Lower Observation Level, 360 Restaurant and The Top are not affected by the partial closure, according to the operator’s closure notice for 20 October. This means that the visit will continue to include several of the tower’s named attractions, although the main viewing level will not be fully available from the afternoon onwards.

Toronto Biennial light work continues at the tower

The CN Tower is also one of the venues for the Toronto Biennial of Art, a citywide contemporary art event running until 20 December 2026. At the tower, Colombian artist Andrés Ramírez Gaviria presents Sources, a light installation based on astronomical radio signals.

The work transforms signals from pulsars and quasars into a sequence of light. It appears on the tower at the top of every hour, beginning at sunset, for five minutes. The operator identifies the southeast corner of Roundhouse Park as the best viewing point, while the artwork itself is presented on the CN Tower. The Toronto Biennial programme links the installation to the tower’s role as a public viewing landmark without making the artwork part of the temporary access restriction.

For visitors planning both experiences, 20 October 2026 is therefore a split date. The main observation area becomes partially unavailable from 3pm, while the biennial work remains a separate light-based presentation associated with the tower and the surrounding park.

Visiting CN Tower: what travellers from Western Europe should know

• The access change applies on 20 October 2026. Part of the Main Observation Level is unavailable from 3pm until closing, and the tower closes fully at 10pm.
• The Lower Observation Level, 360 Restaurant and The Top are not affected by the partial closure on 20 October 2026. The last entry is scheduled for 8.30pm.
• Sources is presented on the CN Tower at the top of every hour from sunset for five minutes during the Toronto Biennial of Art, which runs until 20 December 2026. The southeast corner of Roundhouse Park is identified as the best viewing point.
• The landmark is in Toronto, Canada, and the related biennial artwork uses the tower and Roundhouse Park as its named viewing locations.
• Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.

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Frequently asked questions about CN Tower

What has changed at CN Tower?

On 20 October 2026, part of the Main Observation Level will be unavailable from 3pm until closing, and the tower will close fully at 10pm.

When does the Toronto Biennial of Art take place at CN Tower?

The Toronto Biennial of Art runs at the venue until 20 December 2026. Sources appears at the top of every hour from sunset for five minutes.

Where is CN Tower and how do you get there?

CN Tower is in Toronto, Canada. The related biennial installation can also be viewed from the southeast corner of Roundhouse Park.