The Blue Lagoon off Mavronoros Islet holds water so clear that anchor chains hang visible fifteen metres below the hull. This sheltered basin, carved into white limestone at the southern tip of Paxos, remains accessible only by private yacht or tour boat — no road connects the cove to land, and no jetty interrupts its shoreline. The geography is accidental: millennia of wave action hollowed the rock into a near-circular pool, while prevailing northwesterlies push surface currents away, leaving the interior undisturbed. Visibility peaks in morning hours, before afternoon winds stir sediment and reduce clarity to eight metres. Paxos blue lagoon corfu beaches tours typically depart Corfu Town or Syvota harbour between 08:30 and 09:00, threading south through the Ionian archipelago. Most itineraries pair the lagoon with Antipaxos — a smaller island two nautical miles distant, known for Voutoumi Beach and its gradient of sapphire to jade. Operators anchor mid-basin for swim stops lasting thirty to forty-five minutes; the water temperature holds 24–26°C from June through September, dropping to 19°C by late October. Limestone shelves create natural depth markers: one metre at the lagoon's northern edge, five metres at its centre, twelve where the basin opens to the Ionian Sea. The Blue Caves — a separate formation along Paxos's western coast — appear on extended cruise routes. These sea arches, eroded into the cliff face, refract sunlight into bands of cerulean and cobalt, most vivid between 11:00 and 13:00 when the sun reaches optimal angles. Captains idle engines and drift beneath the arches; passengers lean over railings to photograph the light play on submerged rock. The caves stretch intermittently for two kilometres, with the largest spanning eighteen metres across and nine metres high at low tide. Full-day paxos blue lagoon corfu beaches cruises include lunch service on deck — typically Greek salad, grilled fish, and local wine — and return passengers to Corfu or Syvota by 18:00. Operators enforce swim-stop rotations to prevent overcrowding; peak season sees eight to twelve boats anchored simultaneously, spaced thirty metres apart. The lagoon's appeal is structural: unlike open beaches, the enclosing rock walls block wind and moderate swell, creating a basin calm enough for non-swimmers to enter safely.