The opposite of shallow is deep.
shoal
lagoon
I always stick to the shallow end of the pool.The bath was shallow.He was always a shallow person.
TREADING
wade
From the root word "lunod" which means "drown", "drowning'' in tagalog is equivalent to the word "nalulunod".Tagalog Translation of DROWNING: nalulunod
Shallow is an adjective.
Flats
The answer is Creek.
Paddle Wade
It's a small fast moving shallow body of water