Finding a hotel...

I checked your dates through this board and a couple of others, and it does not look like Playa Los Arcos is available.

If you need to be on the beach, try Suites Emperador or the Tropicana. If you can stay a block or two in from the beach, it will be much more affordable.

Try and find something in PV, much better than Cabo IMHO.

try cantos del sol or villas vallarta by canto del sol... canto del sol is on the beach and if you stay at villas vallarta by canto del sol you can use both resorts...

Try Hotel Eloisa www.hoteleloisa.com. Not on the beach but just a half a block from the beach. Real nice; clean and firendly staff. Go for the suite overlooking the park. Has a really outstanding roof pool and relaxing area where you can see everything. Chuck

Other hotels nearby Los Arcos:
Hotel Eloisa
Vallarta Sun Suites & Hotel
Gaviota Vallarta
Torre De Oro
Molino de Agua
San Marino Plaza
Tropicana
Suites Emperador

A bit further from the beach and more modest 3-stars:
Posada de Roger
Hotel Encino
Hotel Posada Rio Cuale
Hotel Rio