We had the bikes with us in Straelen and discovered that the town had laid out a cycle route to connect with a Dutch cycle route to the exhibition. Taking public transport to the exhibition and return using a collective taxi to the station in Venlo and the bus to the Floriade would have cost us €14 a piece, so taking the bikes was quite attractive. We followed temporary signposting into the Netherlands. Finding the the exhibition once we crossed the border was easy we just followed the signs painted on quiet country roads.
There was adequate free bike parking available:
Our guesstimate was about a thousand bikes: