Looking on the internet deeply has found these results:

i was in ocean park is the most popular phrase on the web.

i was at ocean park 11 results on the web	i was in ocean park 120 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
The last time I was at Ocean Park Hong Kong was in the mid 1980s and I was around 10 years old. So it was some kind of wonderful to be visiting it this time�...	I almost forgot I was in Ocean Park. Instead, I just followed my family. When I realized where I was, I saw that I was already in the queue for a ride on a �pirate�... Feb 24, 2010 ... thease are the Panda's i saw when i was in Ocean Park zoo Hong Kong on July 2009, epic holiday and wish i was there now! thanks vinny for�... Jan 8, 2015 ... �[i]f someone were to say 'I was in Ocean Park today,' a reasonable person would naturally say to herself 'he must have been there to get his�... Feb 2, 2016 ... The FC asked the question �If someone were to say 'I was in Ocean Park today,' a reasonable person would naturally say to herself 'he must�...

i was at ocean park

11 results on the web

i was in ocean park

120 results on the web

More popular!

The last time I was at Ocean Park Hong Kong was in the mid
1980s and I was around 10 years old. So it was some kind of wonderful to be visiting it this time�...

I almost forgot I was in Ocean Park. Instead, I just followed my family. When I realized where I was, I saw that I was already in the queue for a ride on a �pirate�...
Feb 24, 2010 ... thease are the Panda's i saw when i was in Ocean Park zoo Hong Kong on July 2009, epic holiday and wish i was there now! thanks vinny for�...
Jan 8, 2015 ... �[i]f someone were to say 'I was in Ocean Park today,' a reasonable person would naturally say to herself 'he must have been there to get his�...
Feb 2, 2016 ... The FC asked the question �If someone were to say 'I was in Ocean Park today,' a reasonable person would naturally say to herself 'he must�...