It is possible to the Huaca del Sol from the vantage point of the Huaca de la Lune, although this has not been excavated. The cost of doing so is roughly USD 50m, and at present, the funds raised from Huaca de la Lune go to the central government, and a small proportion is returned for maintenance and further archaeological work at the site. Between the two sites there was a Moche settlement, which still exists in a way nearby as the Moche area. It is believed that as a result of an El Nino event that caused extreme weather events which the priests couldn’t “fix”, the Huaca del Sol waxed as the Huaca de le Lune waned. However, eventually, again possibly as a result of another El Nino event, the Moche civilisation itself waned, and was later replaced by the Chimu.