TonusOH:
I had a similar experience as yours. This was considered our summer vacation.
Our congregation was assigned Milwaukee County Stadium for our 1975 four day summer convention. Our congregation was 90 miles away from Milwaukee, located on the north side of Chicago.
Some congregation members stayed at Milwaukee hotels for the four day convention. Since my parents and some congregation members were either too cheap/ or didn't have the means to pay for hotels and meals, they decided to charter a bus to Milwaukee for the four days. The chartered bus picked us up at 7.a.m. every morning at our Chicago Kingdom Hall. It was a 2 hour drive to Milwaukee. The starting time for the 4 day Assembly was at 9:45 a.m. .
Since the bus arrived around 9 a.m. each morning in Milwaukee, all seats that were shaded/partly shaded or had a cover from the blazing sun in the middle of July were all taken. We had no choice but to sit on the outfield seats ( which were in full sun, all day long). Imagine sitting in the blazing sun all day long with a jacket/ tie or mothers having to take care of small children in the oppressive heat. Talk about sunstroke!
The convention meetings ended around 5 p.m. We would get back on the chartered bus around 6 p.m. and drove back to Chicago for another 2 hour drive. It would be around 8:30 p.m. each night that we would arrive back home. We ate dinner around 8:30 p.m., went to bed, and did the same routine for the next 3 days.