Hi Teresa, 
There doesn't appear to be a pre-bookable "package" as such available on this trip but you can book both before you leave or when you arrive in resort.  
Information I have which is for the next departure in September is as follows... 
Valldemossa 
Three-quarter day - Minimal Walking - Highly Recommended 
Price £48.00 
Pre-Bookable or In Resort (Charges may apply if booking In Resort) 
Palma 
Three-quarter day – Minimal Walking – Cultural 
Price £45.00 
Pre-Bookable Or In Resort (Charges may apply if booking In Resort) 
Kindest regards, 
Julia