The Russian Champion Vasily Alexeev is one of the greatest weightlifters who ever lived.
One of Alexeyeev's most unusual training techniques was to practice his cleans in waist-deep water. This famous shot was taken of Alexeev as he trained in the Don River in Mother Russia.
Unconventional... but certainly effective:
Alexeev set the first of his 80 world records in 1970 and was undefeated for the remainder of his career which also included two Olympic Gold medal winning performances (1972, Munich and 1976, Montreal).