Jones warned of espionage risk
Eddie Jones warned in January that he feared England could be spied on during the World Cup because of the number of tall buildings that surround some of the pitches they would use in Japan.
Their training base at the Disneyland resort is the most exposed of their venues on the road to the semi-final. At least 500 apartments soar above the two-pitch base, rendering the two-metre high tarpaulin fence redundant.
In Miyazaki, where England trained before the tournament and on the weekend of their cancelled game against France, the pitch was overlooked by the team hotel, but it was such a remote location, hundreds of miles from the action, that there was little risk of espionage.
When the team held an open training session there for locals, the two security guards, who use binoculars to look for cameras, patrolled the perimeter to make sure no one was filming.
Their next location, in Sapporo, was overlooked by some small apartment blocks but less exposed than Tokyo Bay. Their bases in Kobe, which was close to a busy flyover, and Tokyo, before their return for the semi-finals, were private.