Relatives remember Amber Street, from Pagham, as Sussex Police continue to investigate the crash.
A festival celebrating dragonflies is under way as visitors are encouraged to spot the insects.
James Howell and Max Edginton set off on the 1,000 mile trip from Arundel, West Sussex, on Saturday.
Police said the woman, from Sidlesham, was pronounced dead at the scene of the crash in Arundel.
In the 18th Century, the government had big ambitions to turn Arundel into a thriving inland port.
It is "tulip mania", says Martin Duncan, head gardener at the 11th Century castle in West Sussex.
A hospice facing a £3.7m deficit is ending some services, but says its three sites will remain open.
The castle was built by architect Francis Hiorne, who wanted to secure a larger contract.
Sussex Police says it received reports of "a noise coming from a parked lorry" on the A27.
