Penza, 17 April 2015. PenzaNews. The Penza Zoo will hold a special action on Wednesday, April 22, as part of the international wake-up call eco-campaign.

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From 10.30 am to 11.30 am, the zoo will give free passes to visitors with alarm clocks, but will resume the usual ticket strategy later on.

The Zoo representatives noted that a mobile phone alarm clock would not make a visitor eligible for a free pass.

The action will also involve quizzes, guided tours and knowledge programs for the visitors, an art expo, and a contest with prizes and gifts, says the website of the Penza Zoo.