Costa Rica tips (2 Viewers)

[NutterButter]

IMO I'd consider
D1 Land @ LIR - Drive to Arenal.
D2 Full day Volcano Tour
D3 River Safari Tour w/ Carlos
D4 : Drive to Monteverde > Treetop Dining
D5 : Selvatura Adventure Park > Dinner somewhere
D6 : Drive to Playa Samara or Playa Hermosa (Playa Flamingo would work too!)
D7: Chill... Go fishing... Do a booze Cruise.... whatever..... Go to Dinner
D8: Chill... Go fishing... Do a booze Cruise.... whatever..... Go to Dinner
D9: Drive back to LIR

I was almost all set to follow your itinerary to a T (with playa samara being the chosen beach stop) when we decided to add an additional 2 days. Now we're gonna be there for 11 days. How would that affect your suggested itinerary?