Could anybody correct it please? Thanks!

Dear Jamie,
I am happy to hear from you. I am writing this email because I would like to suggest where your sister and her friends could go next week.
They could pop in Portofino for a day journey as it is not so far from my city. There are many cheap boats from the Old Port and the trip just lasts one hour and half.
Otherwise, train is the faster best way to get there faster even though it is a bit expensive. It usually takes thirty minutes from the main station. However, if they prefer to visit museums and squares, they might go around by bus or by on foot.
I think they should leave early in the morning as they could find trains delayed or crowed because of Ssummer season.
Regarding the return journey, they might take the last train by leaving at 8pm in order to come back before midnight.
I am sure your sister and her friends will have a fun and a lovely journey here.
I am looking forward to hearing from you soon.
Loads of Love,
Pa

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I corrected to the best of my knowledge. Someone else might give you better feedback.