Park info view: links to activities not working

[gregallensworth]

http://www.caliparks.org/park/14224

Click an activity icon, which should link to the same target as the Explore activities. The URL changes in the address bar, but it doesn't actually change over.

Dan pasted this link, which may be relevant:
https://github.com/GreenInfo-Network/caliparks.org/blob/250a781e5ed98a3e1f39e71394f3d1c79a6fcb06/app/public/routes.jsx

[gregallensworth]

Duplicate of #637

[danrademacher]

Dupes #637