also: ゆうほこうはん
noun
promenade deck
A deck on a passenger ship designed for walking and leisure, often open or partially covered.
遊歩甲板を散歩しながら海を眺めた。
I strolled along the promenade deck while gazing at the sea.
この客船の遊歩甲板は木製で、とても雰囲気がある。
The promenade deck of this passenger ship is made of wood and has a wonderful atmosphere.
甲板 is a general term for 'deck' on a ship, while 遊歩甲板 specifically refers to a deck intended for walking and leisure.
Compound of 遊歩 (promenade, walking for pleasure) and 甲板 (deck). The reading ゆうほかんぱん is a straightforward combination; ゆうほこうはん may reflect an older or alternative reading of 甲板.