Adjustable difficulty rock hold

1. An adjustable rock hold comprising:

a rotatable outer portion configured to rotate about an axis of the adjustable rock hold and rotate with respect to a climbing surface, wherein the adjustable rock hold is configured to be attached to the climbing surface;

a plurality of gripping surfaces positioned around an outer edge of the rotatable outer portion;

one or more securing elements configured to secure the rotatable outer portion with respect to the climbing surface, wherein the one or more securing elements comprises a fixed center portion of the adjustable rock hold configured to attach to the climbing surface and configured to interface with the rotatable outer portion to secure the rotatable outer portion onto the climbing surface; and

a bias element positioned between the fixed center portion and the climbing surface, wherein the bias element is configured to bias the fixed center portion away from engagement with the rotatable outer portion when the fixed center portion is loosened from attachment to the climbing surface, allowing the rotatable outer portion to be rotated with respect to the fixed center portion.

2. The adjustable rock hold of claim 1 , wherein the gripping surfaces comprise different levels of difficulty.

3. The adjustable rock hold of claim 1 , wherein the one or more securing elements comprise one or more bolts configured to fit through openings in the rotatable outer portion and secure the rotatable outer portion onto the climbing surface.

4. The adjustable rock hold of claim 1 , wherein the center portion is configured to fit into an opening in the outer portion, wherein the center portion comprises one or more ridges configured to align with one or more slots in the opening of the outer portion.

5. The adjustable rock hold of claim 1 , wherein the one or more securing elements comprise one or more bolts configured to fit through openings in the center portion and secure the center portion in contact with the outer portion.

6. The adjustable rock hold of claim 1 , further comprising a first configuration wherein a first gripping surface is positioned at the top of the rotatable outer portion, and a second configuration wherein a second gripping surface is positioned at the top of the rotatable outer portion.

7. The adjustable rock hold of claim 6 , wherein the adjustable rock hold is configured to be rotated between the first configuration and the second configuration without completely removing the adjustable rock hold from attachment with the climbing surface.

8. A method of using an adjustable rock hold comprising:

securing at least a portion of the adjustable rock hold to a play surface to form an attachment between the play surface and the adjustable rock hold, wherein the adjustable rock hold is positioned in a first configuration, wherein securing at least a portion of the adjustable rock hold to the play surface comprises securing a center portion to the play surface, wherein the center portion engages with the rotatable outer portion to hold the position of the rotatable outer portion;

loosening the attachment between the play surface and the adjustable rock hold;

biasing the center portion away from engagement with the rotatable outer portion, allowing the rotatable outer portion to be rotated with respect to the center portion;

rotating a rotatable outer portion of the adjustable rock hold with respect to the play surface from the first configuration to a second configuration; and

tightening the attachment between the play surface and the adjustable rock hold to maintain the rotatable outer portion in the second configuration.

9. The method of claim 8 , wherein securing at least a portion of the adjustable rock hold to the play surface comprises attaching the rotatable outer portion to the play surface using one or more bolts configured to fit through openings in the rotatable outer portion.

10. The method of claim 8 , wherein biasing the center portion is accomplished by a spring positioned between the center portion and the play surface.

11. The method of claim 8 , wherein the first configuration comprises positioning a first gripping surface at the top of the rotatable outer portion, and wherein the second configuration comprises positioning a second gripping surface at the top of the rotatable outer portion.

12. A play structure comprising:

a play surface; and

one or more adjustable rock holds configured to be adjustably attached to the play surface, the one or more adjustable rock holds comprising:

a rotatable outer portion configured to rotate about an axis of the adjustable rock hold and rotate with respect to the play surface;

a plurality of gripping surfaces positioned around an outer edge of the rotatable outer portion;

one or more securing elements configured to secure the rotatable outer portion with respect to the play surface, wherein the one or more securing elements comprises a fixed center portion of the adjustable rock hold configured to attach to the play surface and configured to interface with the rotatable outer portion to secure the rotatable outer portion onto the play surface; and

a bias element positioned between the fixed center portion and the play surface, wherein the bias element is configured to bias the fixed center portion away from engagement with the rotatable outer portion when the fixed center portion is loosened from attachment to the play surface, allowing the rotatable outer portion to be rotated with respect to the fixed center portion.

13. The play structure of claim 12 , wherein the one or more securing elements comprise one or more bolts configured to fit through openings in the rotatable outer portion and secure the rotatable outer portion onto the play surface.

14. The play structure of claim 12 , wherein the center portion is configured to fit into an opening in the outer portion, wherein the center portion comprises one or more ridges configured to align with one or more slots in the opening of the outer portion.

15. The play structure of claim 12 , further comprising a bias element positioned between the center portion and the play surface, wherein the bias element is configured to bias the center portion away from engagement with the rotatable outer portion when the center portion is loosened from attachment to the play surface, allowing the rotatable outer portion to be rotated with respect to the center portion.