Walks and guided tours: routes through national parks and nature reserves, city walks with a guide, weekend outings. Most of them are in Jerusalem, Tel Aviv and Kiryat Tivon.
About 40% of events are free to enter; national park routes usually carry an entrance fee, and some walks need booking ahead. Both are stated on the event card.
In summer many routes start early in the morning or towards evening — check the time, which is always Israel time.