We will be in Marseille on the Oasis of the Seas in May 2019 and I am in the planning process. I have been reading a lot about what to do in Marseille and I think our whole group (8 adults and 4 kids) has decided we pretty much don't want to spend the day looking at church's or museums. So, we have decided we would like to visit these 2 places. Is it possible to do them both in one day (8 hrs) and is it possible and easy to do them on our own without a tour company? If we cannot do both we would