By Devotee of Hare Krishna : Here in this photo you can see the floating stones at Rama Kund in Rameswaram temple. This stone which weighs about 10-12 Kilos is floating in the Rama kund in the temple tank. This is demonstrated by HH.Bhakti Vikasa Swami Maharaj.
It’s not a big wonder that a simple stone is made to float by the Supreme Lord Sri Ramachandra. Because the Lord is making the planets which are so big containing the oceans and mountains in the Universe float in the space, not even water. The foolish scientist cannot make any such wonders but the Supreme Lord is the perfect scientist and the perfect mystic.