Vocabulary consisting only from characters you are able to read
How big is your 'package'?ai, baka
水力
すいりょく
hydraulic power, water powermix
山
やま
mountain, pile, heap, climax, critical pointjlpt5, shizen
二人
ふたり
two persons, two people, pair, couplejlpt5
よじ上る
よじのぼる
to climb, to clamber (over, up), to scramble (up), to scale, to claw one's way upgodan, verb, vintrans
上がる
あがる
(1)to rise/to go up/to come up/to ascend/to be raised/ (2)to enter (esp. from outdoors)/to come in/to go in/ (3)to enter (a school)/to advance to the next grade/ (4)to get out (of water)/to come asho godan, verb, vintrans
上
うえ
above, on top of, up, upper part, surfacejlpt5