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