Last May Day, a stand-in sculpture made of recycled plastic was used for the ceremony. Students will also be placing caps on statues during celebrations in at least Tampere, Turku, Jyväskylä and Oulu.

What will become the largest cruise ship in the world is set to begin sailing from Port Canaveral in August, but first Royal Caribbean’s Star of the Seas has to complete a series of sea trials. The ...