Solo F 10 days to Paris, London, Amsterdam in late July, early August
What is the question?
10 days for all 3? Not enough time unless you like rushing and rushing. For 10 days total, I'd cut one of these cities.
I agree I would cut one too. However if you insist on all three , I would fly into London , take Eurostar to Paris ( buy tickets as far in advance as possible for cheapest prices ) then from Paris I would take Thalys train to Amsterdam , and fly home from Amsterdam . It would be rushed . I would give Paris and London more time than Amsterdam .
I don't think the OP was looking for itinerary advice, she was posting in the "Travel Partners" forum.
Sorry bhbinhua8, I'll be solo in Paris mid-June and mid-September (not between). Otherwise I might be interested in meeting up.