Creating metal sculptures that interact with water features presents a unique set of challenges for artists and designers. One of the primary hurdles is material selection. Metals must resist corrosion from constant water exposure, requiring stainless steel, bronze, or specially treated alloys. Additionally, the sculpture's design must account for water flow dynamics, ensuring the piece enhances rather than disrupts the feature's aesthetic and functional balance.

Another challenge lies in structural integrity. Water pressure, movement, and environmental factors like freezing temperatures can stress metal components, demanding robust engineering to prevent wear or failure over time. Artists must also consider maintenance accessibility, as water features often accumulate debris or algae, requiring regular cleaning without damaging the sculpture.

Finally, achieving harmony between the sculpture and water feature is an artistic challenge. The metalwork must complement the water's visual and auditory qualities, creating a cohesive sensory experience. Balancing form, function, and durability makes these sculptures a complex yet rewarding endeavor.