Travel Agenda: Festival dos Oceanos; No 1 Traveller Lounge; Paris's Le Diner en Blanc

Today: The waterside setting of Lisbon is celebrated at the Festival dos Oceanos, until next weekend with concerts, late-night museum openings and fireworks (festivaldosoceanos.com).

This week: The stylish new No 1 Traveller Lounge opens on Friday at Heathrow Terminal 3, offering access to a spa, mini cinema, games room and bistro for £25 per person (no1traveller.com)

In the diary: Paris's Le Diner en Blanc, at which diners congregate en masse, all wearing their finest white, for an upmarket picnic is decamping to a hush-hush location in New York on 25 August (dinerenblanc.info).