How to pronounce “charlestown”(verb) in English

they play hockey and basketball td north thank you uh they there's a little ramp actually uh there's a little road called beverlystreet connector there's a little ramp through these locks that take you right over to uh to charlestown and then you're right along the water incharlestown there's a lovely run right along the water in charlestown all the way past the uss constitution up to something called 16th street it's about