Birds underwater quality with higher pitch chirp effects

Boat Engine Hum Underwater

Boat Engine Hum Underwater

Boat Idle Underwater

Going Nowhere Slow Rhythmic Bell Tones Speed Up To Metallic Mixer

Going Somewhere Low Slow Rhythmic Bell Tones

Lab Rumble intense low rumbling with aquatic textures

Medical dark ominous structure with low pitch rumbles and slow howling effect

Ship Ambience; Deep Water Hum, Beeps, Buzzes

Submarine deep underwater effects with low liquid effects

Swimming 1; Under Water.

Underwater dive movement

Underwater Engine steady engine vibrations with high pitched buzzing accent

Underwater fast hard moves

Underwater movement

Underwater submerge hydrophone

Underwater Underwater Thump with Reverb, Phase Tail

Small depth charge explodes underwater. Underwater, Explosion War, Explosion Explode, Bomb