Mount Vaea rises directly behind Apia and gives one of the best short walks on Upolu. The trail climbs through humid forest to the grave of Robert Louis Stevenson, with views back across the north coast when the weather is clear.
The walk is not long, but it is steep and can be muddy after rain. Start early, carry water, and combine it with nearby Vailima if you want the Stevenson story to make sense rather than just ticking off the viewpoint.