Sec. 4. (a) Recreational users are considered to:
(1) have knowledge of; and
(2) assume;
the risks of using the recreational facility.
(b) For purposes of this chapter, risks of using a recreational facility include the following:
(1) Injuries that result from collisions or incidental contact with other recreational users or other individuals who are properly present at the recreational facility.
(2) Injuries that result from falls caused by loss of balance.
(3) Injuries that involve objects or artificial structures that are not otherwise attributable to an operator's breach of the operator's duties or responsibilities under section 2 of this chapter.
(4) Injuries that result from the recreational user's violation of the recreational user's duties under section 3 of this chapter.