We have been at the expo in the second week. Although it was a nice 3 day visit we think more could have been done in efficient queuing for pavilions and providing shade. Also most of the cold drinks and ice was sold out by the end of the mornings. An event that will attract so many visitor under the hot Spanish sun in mid summer must provide more shade and ´cool down´ zones then as we saw.
We also noticed that the water and recreational park around the expo was still to be finished (with a considerable amount of work to be done, like most of the finishing of streets, pavements and infrastructures around the main entrances) which could have server as such zones. A big organisational miss if you asked me.

Visitor tip: Bring an small umbrella against the sun and a light weight folding chair for using while waiting in the endless queues!

Rudy

Went for 3 days in the start of July. First off - water: There are THREE or FOUR public water fountains along the main COVERED concourse.

There is endless second covered second floor shaded space.

There is very underused seating on the Theme Building side of the building behind cooling waterfalls.

Yes there is walking in the sun required - but you are OUTSIDE and in SPAIN in the Summer - as a visitor from America I did not find the situation very unusual for an event like this (very much set up like a theme park).

I think the complains are unwarrented. The event exceeded my expectations .... and about the lines ....yes very long.

My friends and I did not get into the ride pavillions or see Germany or Japan - but there were HUNDREDS of other countries and amazing corporate pavillions to explore with NO LINES.