How to pronounce 海峽 in Cantonese (7 out of 8):

咁淨係海峽邊境
It's just the beach border.

Cantonese Sentence Breakdown

gam3
so (Cantonese)
Mandarin equivalent: 这样zhèyàng [这样], like this
淨係 zing6 hai6
only; merely
海峽 hoi2 haap3
strait
sea
邊境 bin1 ging2
border