What event took place in the 1860s related to the Kapuaiwa Grove?

The event that took place in the 1860s related to the Kapuaiwa Grove is the planting of trees. This grove, now known as the famous "Coconut Grove," was established during this period as part of efforts to beautify the surrounding area and to create a lush environment that showcased Hawaii's natural beauty. The act of planting trees is significant in historical context, reflecting the cultural values of the time, which emphasized the importance of nature and its preservation.

In contrast, the other options like the creation of a park, construction of a hotel, or establishment of a resort are not directly linked to the developments of the 1860s related to the grove. Although parks and resorts may have been created later, the initial focus during that time was primarily on planting trees, which laid the groundwork for future developments in the area.