First conditional: if + present simple, will/can/may + base verb for a real future possibility: If we leave early, we will avoid the heat. Second conditional: if + past simple, would + base verb for an imagined or unlikely situation: If I owned a boat, I would use it responsibly. Were is a standard hypothetical form with all persons; was is also common with I/he/she in informal usage. Do not normally use will in the if-clause.
Topic preview: A responsible ecotourist asks about access, safety and local benefit before booking. During the visit, I would follow the guide, keep to paths and avoid feeding wildlife. I would also ask residents before taking photographs. A tour is not ecological merely because it visits a natural place; its behaviour and impacts matter.