I am planning a trip with my family (my husband, his parents and my parents) to Italy and Switzerland in April 2014. Florence would be our last stop in Italy and we need to go to Switzerland from there. As of now, I have been looking at train options, but, Florence to Interlaken is a 3-change trip and Florence to Lucerne is 2 change. Given the fact that we will have parents with us ans some amount of heavy luggage I am not sure how we will manage this 3 or 2 changes of trains. Is there any other convenient and not so expensive way of travel? Should we go to Interlaken to Lucerne? Flights are ruled out.
Thanks for the help in advance.