Since you're arriving today and it's already mid-afternoon locally, use the morning for relaxed travel prep rather than early activities: sleep in a little, finalize any reservations, and have a leisurely breakfast at a nearby café or your accommodation's lounge while scanning local maps and transit options. If you're coming from abroad, clear customs and drop bags at your hotel, then take a gentle stroll in a nearby neighborhood park or market to stretch your legs and get a first sense of the place.
Spend the afternoon exploring a compact, central highlight that gives a strong first impression — for example, visit the main old town square or the city's signature museum (check opening hours) and join a short guided walking tour to learn local history and cafés to return to. Pop into a well-rated local restaurant for a mid-afternoon tasting of regional specialties, then browse an artisan market or a landmark cathedral to build context for the rest of your trip.
As evening falls, choose a memorable welcome dinner at a cozy neighborhood bistro or a rooftop restaurant with views of the skyline to celebrate arrival; sample a flight of local wines or signature dishes. Finish with a relaxed nightcap at a nearby bar or a quiet walk along illuminated streets or waterfront — an easy, low-key introduction that keeps you rested and excited for tomorrow.