泊 has two pronunciations: bó (to moor, to park) and pō (lake, as in 湖泊 húpō and 梁山泊). 泊车 (bóchē, to park) is more common in Cantonese-speaking areas and Hong Kong.
memory
氵(water radical) + 白 (white). Picture a white boat resting on calm water — moored in place.
