This is a simple seat along a garden path:
four pressure-treated 2" X 4"s bolted together and laid on two leveled concrete blocks. Then one day I was sitting there eating an apple from a nearby tree,
and decided it would be a nice place for a table.

So I designed a swing-up table for two, that is hinged to a 2" X 6" post buried 2' in the ground. When the table is down, the path is unobstructed. In use it is held up by the white  schedule 40 plastic leg which stores atop the lowered table.