Try and buy pool boards at Urbansurf
With immediate effect, you will receive a 5 CHF shopping voucher for the Surfari Surf Shop with every Semente surfboard rental at the Urbansurf facility in Zurich.
This will give you a CHF 5 discount on your next purchase at the Surfari shop on Badenerstrasse. Of course you can also redeem several vouchers from your board rentals.