You'e not going to be able to solo thru Go West. About the only two operations that are 100%
no solo are Go West and Ocean Encounters. I only did a couple solo dives (I don't have a card) at two of the resorts and no one asked so IDK the policy at nearby operations.
Is solo diving allowed?
For both your own safety and our dive shop policies and security standards we do not allow and support solo diving.
Marazul is on a cliff so there's no beach for your wife. I think they have an arrangement with a dive operator for tank delivery but I'm not sure.
What is good is that many of the beaches in the west are also dive sites. Many have shops on-site also.
A lot of them are listed here:
Scuba Shore Diving Site Listing for: Curacao, ABC Islands
You can match some of operators/beaches listed here:
Dive and snorkel in the bright waters of Curaçao
A little south Porto Mari is a nice beach, good double reef dive, Playa Lagun is a very protected nice beach with a bar/grill up the stairs to the north. Cas Abao is another nice beach. Playa Jeremi is a nice beach - one of few with
no facilities. Good snorkeling on the north side of the cove, it's listed in Frommers.
The Gnip sites are supposed to be nice beaches also - have never been to them. They actually get a little rockier closer to Westpunt - the beach in front of All West (the other Go West shop) is pretty nice but the beach at Lodge Kura Hulanda is pretty rocky. Good snorkeling with the flounder to the north among the coral heads - watch for the Lodge KH kayakers.
Arguably the best
dive in the area is off Go West - Playa Kalki/Alice in Wonderland. Turtles are outside the cove off Lagun. Jeremi is just a nice dive also - nothing special but a lot of it.
Varsenbaai could be another for both of you, we found seahorses in 40' off the ball, if you go south there's a big pontoon boat wreck at about 80' beyond it (a lot deeper) is the other Carpile wrecks site. Your wife might see squid under the dive dock. And maybe 50' south of the dock just off the beach in about 6-8' are turtles living on the seagrass there - the operator said they'd lived there about a decade - probably still there now.
Port Mari is a double reef site - popular locals beach also. Popular on weekends with the locals.
We stayed south of you in Lagun for a few days. Discover Dive is at the entrance to PLaya Lagun, if they had a no-solo policy it wasn't obvious to me - although 4-5 of us checked in together.
Discover is about 1/2 block from the beach but has a truck height loading dock. Bahia Diving is at Bahia Apts. on the north side cliff also. Don't know them at all.