In September, I am planning to take the train to Vernon to visit Giverny Monet's Garden. Is it necessary to purchase the Monet's Garden tickets in advance via online? On the website, it has 3 different online avenues for the tickets, See, Ticketmaster, and FNAC. For some reason, Ticketmaster is currently selling tickets only through August 17. Looking for some advice on how to proceed.
Thank you in advance for your advice.