Thanks for a great thread - an excellent occasion to go through old photos and relive the memories!
My first time was in September of 2004 for 4 nights, stayed at the hotel Argos in Talamanca. Me being a travel junkie, this was planned not as a beach/nightlife vacation at all, but as a quick sightseeing trip. I didn't know back then I would later return to Ibiza again and again, so I tried to visit all attractions during that trip (and failed even at that). So I didn't enjoy it that much back then, and my first Ibiza trip was by far the worst one.
If you are an Ibiza virgin, don't repeat my mistakes and don't cram too much sightseeing into your calendar - attractions won't run away, you can visit them years later on subsequent trips to the island
Day 1
Arrived, picked up my rental car, drove West along the coast to Es Cubells, Cala d'Hort, Cala Vadella, enjoyed some tremendous views from the road.
From there, drove via St. Josep back to Ibiza Town and checked in at my hotel in Talamanca. Tried swimming at Talamanca - yuck! Drove to Cala Boix for swimming, enjoyed the waves. It's still one of my favorite beaches on the island.
Was a very hot day with some fine sand blown over from the Sahara desert which covered all parked cars.
Day 2
Drove to Portinatx, then snorkeled at Cala Xarraca (got bitten by jellyfish), then on to Port de Sant Miquel (and an excursion to Cova Can Marca). Went to Benirras from there (horrible parking). Then returned to the hotel and took a small boat across the harbor to Ibiza Town (the boat stopped at El Divino underway, IIRC). Walked through busy pedestrian streets by the port, entered Dalt Vila through the main portal, randomly walked uphill through the maze of streets until I arrived at the cathedral. Before the trip, I had read about powerful lasers from the big clubs in San Rafel illuminating the sky, but this must have been before my time on Ibiza, I only saw a bright colored spotlight shining from Amnesia. Walked along the bastions on top of Dalt Vila in the dark enjoying the views, the warm evening and... silence.
Dalt Vila at night was magical - the tranquility on top is such a contrast to the busy streets outside the walls packed with people, cafe tables and shops and the equally busy Placa de la Vila. Since then, every time I visit Ibiza, I go on top of Dalt Vila and soak up the atmosphere - it never gets old.
My sightseeing bucket list included "visiting a club", so having consulted Ibiza Spotlight (yes!!!) for the party calendar, I went to Tunnel Trance Force at Privilege. Wasn't really memorable (except for a bottle of water costing 11€ in the club), and I wasn't in the mood for partying, so spent an hour or so listening to their fast trancy music, then called it a night - this bucket list item was done, and that's what counted.