The directions out of the terminal have changed since I wrote those, so here's my updated version & hopefully they haven't changed the Car Hire zone/carparking area too much!!!! Hope they help. Sara ;-)
Exit the multi-storey car park, through the barrier turn left & merge with the one-way traffic coming from your right. At the next junction (not far away) there will be more car park exit barriers to your left & you need to turn right up the hill (almost doubling back on yourself). Go up the hill & merge with traffic from the right; stay in the left lane up to the roundabout. Enter the roundabout & take the 2nd exit signposted E15/A7/A70 Valencia/Murcia (blue sign). Be aware that the airport turn-off is very close to the one you need, if you take this by mistake, then you will at least be able to familiarize yourself with the airport….
Follow the signs for E15/A7/A70; after approx 2K the road will bend quite hard to the right again signposted A70 Murcia & AP7 Torrevieja/Cartegena, this will put you onto the A7 (ignore the signs for AP7 Torrevieja from this point on). Continue along this road (E15/A7) until you reach Murcia City, should take approx 30 mins (you will see signs for Ikea, Neuvo Condominia & the Football Stadium).
Stay on the motorway and as you come in to Murcia City continue to follow the signs for Almeria/Granada. You will start to pick up signs for A30 Murcia/Cartegna – DO NOT follow these, continue to follow signs for Almeria/Granada; to make it easier stay in the right-hand lane if possible. As the roads start to section off A30 & A7, there will be a motorway sign for the A7 with a yellow Arabic sign with a picture of a ship on it, shortly after this the A7 bends to the right. It will look like you’re coming off the A7, as you join what looks like another motorway, don’t worry; it is still the A7 & is still signposted Almeria/Vera/Granada.
Continue on the motorway & the next town signed is Alcantarilla; after this you will pick up signs for Alhama de Murcia. As you near Alhama de Murcia look for Junction 627 (approx 20 mins away from Murcia) which is 1K after a big sign that says ‘El Pozo’(it is a big factory on your right).
Get into the Right lane for the exit 627; it splits in to 627A & 627B. (The first turn off (627A) is for Alhama de Murcia). Take the 627B exit which is immediately after 627A (it is a very sharp right hand bend) – signed ‘Bahia de Mazarron’, ‘Mazarron’ & Cartegena’. At Junction 627B you merge with the RM2.
Take the second exit which is junction 4(it goes from Junction 1 straight to Junction 4 – missing out 2&3) for Mazarron. You will come to a roundabout & take the 1st exit for the RM23 Mazarron & Puerto de Mazarron.
You will see, in the distance, on your left as you drive up the RM23 a long line of palm trees, these line the road that approaches the main entrance.
CDA will be signposted approx 3 miles along this motorway; it has its own junction. Come off the motorway, to the roundabout/flyover, take the 2nd main exit (there are several service roads off this roundabout, but you will see the main exits are signposted) to the resort entrance; as you drive up the tree lined road there will be a huge sculpture on the roundabout in front of you with the name of the resort on it. The whole journey should take approx 65 mins depending on traffic.