Lava tubes are underground caves formed by flowing lava during volcanic eruptions. These structures exist on Earth and other planets, including the Moon and Mars, where they could serve as natural shelters for future space missions. However, seismically detecting lava tubes below the surface is challenging. In this study, we introduce a seismic technique based on enhanced backscattering, where seismic waves scatter due to a cave, resulting in a measurable energy increase at the surface. We test this method at three known terrestrial lava tubes and find that energy patterns in seismic wavefields reveal the cave locations and sizes. Our findings suggest that this technique could help detect lava tubes on the Moon and Mars, aiding future exploration efforts.