I think we are going to use them for a day trip and private tour of sintra because my spouse has a business dinner and I want to make sure we are able to get back in time for that and not get lost and see most of the sights efficiently. I know it is on the expensive side and probably could do without but we will be just getting off the plane the day before and again we don't want to take the wrong bus or its late and we miss the business dinner in Cascais.
Thank you!!!