Here was my reasoning. There are 3 main use cases:
1. I know exactly which hike I'm looking for. I type it in, and there it is (I know that currently that is almost never true, but let's assume there is a good number of hikes on there already).
2. I want to find hikes near me - rather than type it in, I go to the Maps tab. It should automatically zoom me into my location, to display hikes near me.
3. I want to explore new hikes, not necessarily close to me. That's where the Discover tab is useful.
Watching the logs and reading the comments here, I'm finding that it's very natural to search for a location as well. I'm adding it to my TODO.