One of the most well-known nature reserves on Öland is Halltorp's meadow. Halltorp's meadow has one of the highest concentrations of red-listed species in Sweden. It is mainly all the rare fungi and insects that contributed to this. Marked hiking trails also make the area easy to visit.
Orchid species such as:
Saint Peter's keys V. 18-26
Forest keys V. 23-28
Note that the weeks are when the orchids usually bloom. Deviations may occur.