Crazy busy in summer - Fast pass a must!
I'll echo what most seem to say. If you go in the summer either be prepared to queue a lot or buy a fast pass which are not cheap and sell out very quick on the day. We had fast passes and we had a great day. There is a heck of a lot of walking but the longest we queued for any ride was 10 minutes. We got on everything and it was quick and easy. Fast passes are expensive but definitely worth the money. Standard queues were in excess of an hour at peak times for some slides. Plenty of food options but it isn't cheap. Cost about 60 euros for 4 of us to have a fairly light lunch.
Siam Park
Thank you for sharing your experience with us. We’re pleased that the Fast Pass helped you make the most of your day and enjoy the attractions with less waiting. Summer demand can be particularly high, so queues may increase during peak periods, and we understand that this can affect the overall value of a visit. We also appreciate your comments about the cost of food and will keep them in mind as we continue working to improve the Park experience.