How many ribbons do you need to go that special place in the resort area on Pokemon pearl?

You don't need any ribbons to go to the resort area in Pokémon Pearl. The resort area is accessible without needing to meet any specific requirements or obtain any items.

You might be thinking of the Contest Spectacular, which is held at the resort area. To participate in the Contest Spectacular, you need to have won all five contest types with the same Pokémon, earning a Ribbon for each.

Let me know if you have any other questions about Pokémon Pearl!