up to 24 hours before the experience starts (local time)
Having the Basilica of San Marco behind you, stay on the right side of the square and go under the arches. Find Olivetti Museum, turn right passing under the archways, cross the little bridge and go straight on to “Campo San Gallo”, Venice Tours Office is in the square, San Marco 1093/B.
You can cancel up to 24 hours in advance of the experience for a full refund.