hi everyone! I'm going to traveling with a toddler who is under two, to a trip to the Caribbean. I started doing some research on traveling with a baby and thought I'd reach out here for some first hand experiences.

does anyone have any tips on traveling with a baby? Passport tips, stroller tips, any tips on keeping a 1.5 year old busy on a 4 hour flight?

Do i need to buy an umbrella stroller, or will they allow my current hefty stoller on the plane?

thanks!