While standing on the Waikiki walkway which extends onto water around after sundown we saw 5 blue orbs.

Walking down the dark walkway extended into the ocean we immediately noted 5 blue orb like objects flying almost what looked to be in a formation. No sound was heard. Seems to be fairly distant. Intially thought they were stars but noted they were all rapidly moving away from the island and westward as the first 2 slowly dimmed as if they were flying away from the island. What also caught our attention what the 3rd and 4th objects rapidly dropped and regained altitude and approached each other while following the first 2 and the 5th following behind without changes in its altitude. Initially none of them changed their flight allttiude and seemed to go straight across the sky. The colour a light blue for all 5 and very bright and gradually dimmed as they made their way southwest. We saw multiple aircraft taking off and landing from Honolulu airport- they all had beacons and very bright lights when approaching the airport or taking off, none of which looked like these objects. These objects did not flicker like flares.