Lauren Bruce
Google
Payment: pay upon entering, different prices for locals/foreigners. Not expensive.
Facilities: After entering the park there is a recreational area with food places (choice of cheaper local eateries to more expensive restaurants as well as picnic benches if you bring your own food). There are also souvenir shops and a great free play area for children. The access for disabled people is very good throughout this area and has disabled toilet facilities. AMAZING 360 degree views. Some beautiful flower areas with lots of intresting birds. Large parking area.
HIKE: it is mandatory to have a guide on the hikes so that people don't throw trash and destroy protected areas of the park. However its easy and cheap to take a group tour directly from the park. They are well organised and have a max number of 15 people.
There are 2 main hikes from the information centre in cerro verde, the first is around 45 minutes which is a circular walk and not too difficult. The second is to Santa Ana volcanoe which takes around 4/5 hours total, is a there and back route and requires a moderate amount of fitness (and alot of water!).
For the Santa Ana hike you need to be at the information desk (can't miss it, in the main parking area) for 8:45 (you will see a group of people forming). You pay 50 cents at the centre for a guide and later you need to pay to enter santa ana through a private property (free for under 12s, over 65. Foreigners $3, locals cheaper). The guides were professional and knowledgeable, stopping at giving information (in spanish) at various pointa. They did not rush the group and it felt very relaxed.
You can also book private tours through companies which are more expensive but can have English speaking guides and smaller group sizes.