OC - Season 11, Episode 16 - Bringing Up Old Ghosts

The ladies (minus Meghan and Kelly) visit the bailey's farm and then everyone joins them for a private steak lunch
Still Open - The Bailey's Farm

Meghan and Tamra take a tour of Powerscourt house
Still Open - Powerscourt House

While the other ladies bike ride to the gardens
Still Open - Powerscourt Garden

The ladies (minus Meghan) eat outside at the hotel (Vicki, Shannon - tequila plus one for Kelly, Kelly - Salmon, Heather - Poached chicken starter with just veggies no potatoes) 
Still Open - Powerscourt Hotel

Then there is a huge fight in the hallway at 3am