本 Insight - 初歩 - ユニット 4 - 4D

(of a place or space) located outside in a natural or open-air setting, without a roof or walls

屋外の, 戸外の

something that a person spends time doing, particularly to accomplish a certain purpose

活動 (かつどう), アクティビティ

a large rock, usually one that has been shaped by natural forces such as water or ice

巨石（きょせき）, 岩塊（がんかい）

an activity in which someone jumps from a very high place with a rubber cord tied around their ankles

バンジージャンプ, バンジージャンピング

to explore natural underground chambers and tunnels

洞窟探検する, 洞窟を探査する

to jump into water, usually hands and head first

飛び込む, ダイブする

a sport that involves riders performing specific tasks like jumping over obstacles or showcasing their skills on horseback

馬術, 乗馬

the activity or sport of riding a mountain bike over rough ground

マウンテンバイク, マウンテンバイキング

a type of sport in which a person climbs rock surfaces that are very steep

ロッククライミング, 岩登り

a winter sport or activity in which the participant stands on a board and glides over snow, typically on a mountainside

スノーボード, スノーボーディング

the sport or activity of riding a surfboard to move on waves

サーフィン, サーフィン活動

an activity that involves rolling downhill inside a transparent plastic ball

ゾービング, ボール転がし