Thought to have been constructed since the 1930s, Perth Blue Boat House has been rebuilt and repaired on a number of occasions and has had lots of uses. For decades, locals drove past this bright blue wooden house several times a day without noticing. But recently, \_46\_ its popularity on Instagram, the boathouse has become a well-known tourist attraction. There has been a(n) \_47\_ of visitors to this area, with tour buses and self-driven visitors stopping here for pictures. Popularity, \_48\_, can come with problems. The closest public toilet is 1.5 miles away. Tourists go to a nearby restaurant to use the toilets. The owner \_49\_ that some had been rude, disruptive and even verbally abusive. \_50\_ this problem, Perth’s city council has decided to build its first solar-powered toilet. It will reportedly cost US\$278,000 to install and an additional \$14,000 per year for maintenance.