A combination boarding ladder and slide system includes a slide having an upper end pivotally coupled with a support structure, a lower end coupled with a ramp, and a slide bed supporting a removable boarding ladder. The boarding ladder is constructed of a flexible web with generally parallel spaced apart rungs and may be folded or rolled from the slide bed to permit use of the slide. The ramp is equipped with a series of generally parallel, spaced apart rungs. the angle of inclination of the boarding ladder and ramp are preselected to provide boarding access to the support structure by an animal such as a dog. A brace extends between the slide and the support structure to maintain the slide at a preselected angle of inclination. In aquatic applications, floats may be coupled with the lower end of the slide and the ramp may extend below the surface of a body of water.