To update the Google Form go to Google and type Google Forms. You should be directed to the SVI website forms:
(original test form and the current booking form in use are shown). You can then update the form - it is saved automatically. Copy the URL of the new form and then paste it onto the Camp Booking page where the link is displayed in blue font.
If having trouble retrieving the Google forms, try logging into the Website email - this seems to make a connection to Google which tells it to display the Google forms and sheets that are associated with the website.
Not sure is this link below is the actual form in use or just one of the editions.