Is it possible to land with a wingsuite on solid ground or water?

What does not count:

• Jumping from low height that does not allow to reach terminal velocity
• Landing in trees or other objects that might soften the impact (softest surface allowed: low grass)
• Landing in specifically prepared water, like next to a waterfall
• Landing on terrain that is not flat like hills or waves
• Using a parachute or similar device
• Using anything that extends considerably further than the convex shape of the body.
• Wearing or carrying any other object beyond regular clothing and wingsuite (padding, wheels, springs, etc.)
• Timing unregular environmental conditions like storms

What does count:

• Specific body techniques while in the air like flaring
• Specific body techniques on impact like rolling
• Specific training and body shape
• Timing specific but regular and natural environmental conditions like temperature, air pressure, rainfall, moderate wind, elevation, chemical water composition

How shoud this be done to maximise the chance to survive without serious injuries?