Adventure Island does not have any kind of parking for visiting guests.
However, there is a large drop off point outside the park’s main west entrance and they are close to large public car parks with lift and slope facilities.
There are plenty of pay & display car parks in Southend with designated parking for those with a disability:

• Royal Shopping Centre
  Covered, multi-story parking adjacent to Park Inn hotel Pay on return charges apply.
• Street Parking
  Town Centre and seafront parking is available. Pay & Display charges apply with free parking after 6pm.

• Access throughout the site is level.
• There are 3 accessible toilets at this attraction.
• Both arcades at this location are wheelchair accessible.
• Both Restaurants are wheelchair accessible.
• There is a queue assist scheme for any visitor who requires assistance.
• The number of disabled guests on certain rides at any one time may be restricted.

For more in-depth information please refer to the accessibility PDF below.

• Queue Assist Scheme is available for those needing assistance, but no fast track system exists.
• Guests needing assistance, whether due to disability or difficulty understanding queues, are asked to wait with a carer in the queue or at the exit if necessary.
• Ride operators have discretion to allow access at a fair time for guests waiting at the exit.
• Upon entry, guests and carers are directed to seats closest to the exit, and the ride continues to load.
• Some disabilities may require more than one carer for safety.
• The second carer can ride alone and sit behind the first carer and the disabled guest.

Adventure Island provides half-price wristbands for carers as a concession.

These can be purchased on the day of your visit.

Adventure Island offers a Carers Annual Pass.

The Annual Pass will be assigned to the person who needs assistance and then different carers can accompany them on separate visits this Annual Pass is offered at half-price.

Trained assistance dogs are permitted within this attraction

There is a dog policy to follow and can be found here 

Dog Policy